diff --git a/includes/ajaxHandler.class.php b/includes/ajaxHandler.class.php
index b68d6712..ba73ef5c 100644
--- a/includes/ajaxHandler.class.php
+++ b/includes/ajaxHandler.class.php
@@ -204,8 +204,8 @@ class AjaxHandler
     */
     private function handleCookie()
     {
-        if (User::$id && $this->params && !empty($this->get[$this->params[0]]))
-            if (DB::Aowow()->query('REPLACE INTO ?_account_cookies VALUES (?d, ?, ?)', User::$id, $this->params[0], $this->get[$this->params[0]]))
+        if (User::$id && $this->params && $this->get($this->params[0]))
+            if (DB::Aowow()->query('REPLACE INTO ?_account_cookies VALUES (?d, ?, ?)', User::$id, $this->params[0], $this->get($this->params[0])))
                 return 0;
 
         return null;
@@ -552,7 +552,7 @@ class AjaxHandler
 
                 break;
             case 'flag-reply':
-                if (!User::$id || $this->post('id'))
+                if (!User::$id || !$this->post('id'))
                     break;
 
                 DB::Aowow()->query(
@@ -633,11 +633,11 @@ class AjaxHandler
                 // should probably occur in g_user.excludegroups (dont forget to also set g_users.settings = {})
                 return '';
             case 'weightscales':
-                if (!$this->post('save'))
+                if ($this->post('save'))
                 {
-                    if (!isset($this->post['id']))
+                    if (!$this->post('id'))
                     {
-                        $res = DB::Aowow()->selectRow('SELECT max(id) as max, count(id) as num FROM ?_account_weightscales WHERE userId = ?d', User::$id);
+                        $res = DB::Aowow()->selectRow('SELECT MAX(id) AS max, count(id) AS num FROM ?_account_weightscales WHERE userId = ?d', User::$id);
                         if ($res['num'] < 5)            // more or less hard-defined in LANG.message_weightscalesaveerror
                             $this->post['id'] = ++$res['max'];
                         else
diff --git a/includes/types/item.class.php b/includes/types/item.class.php
index e8a9f2ba..93d3845b 100644
--- a/includes/types/item.class.php
+++ b/includes/types/item.class.php
@@ -593,14 +593,14 @@ class ItemList extends BaseType
         $dps     = $speed ? ($dmgmin1 + $dmgmax1) / (2 * $speed) : 0;
 
         if ($_class == ITEM_CLASS_AMMUNITION && $dmgmin1 && $dmgmax1)
-            $x .= Lang::item('addsDps').' '.Lang::nf(($dmgmin1 + $dmgmax1) / 2, 1).' '.Lang::item('dps2').'<br />';
+            $x .= Lang::item('addsDps').' '.number_format(($dmgmin1 + $dmgmax1) / 2, 1).' '.Lang::item('dps2').'<br />';
         else if ($dps)
         {
             if ($_class == ITEM_CLASS_WEAPON)
             {
                 $x .= '<table width="100%"><tr>';
                 $x .= '<td><!--dmg-->'.sprintf($this->curTpl['dmgType1'] ? Lang::item('damageMagic') : Lang::item('damagePhys'), $this->curTpl['dmgMin1'].' - '.$this->curTpl['dmgMax1'], Lang::game('sc', $this->curTpl['dmgType1'])).'</td>';
-                $x .= '<th>'.Lang::item('speed').' <!--spd-->'.Lang::nf($speed, 2).'</th>';
+                $x .= '<th>'.Lang::item('speed').' <!--spd-->'.number_format($speed, 2).'</th>'; // do not use localized format here!
                 $x .= '</tr></table>';
             }
             else
@@ -611,7 +611,7 @@ class ItemList extends BaseType
                 $x .= '+'.sprintf($this->curTpl['dmgType2'] ? Lang::item('damageMagic') : Lang::item('damagePhys'), $this->curTpl['dmgMin2'].' - '.$this->curTpl['dmgMax2'], Lang::game('sc', $this->curTpl['dmgType2'])).'<br />';
 
             if ($_class == ITEM_CLASS_WEAPON)
-                $x .= '<!--dps-->('.Lang::nf($dps, 1).' '.Lang::item('dps').')<br />';
+                $x .= '<!--dps-->('.number_format($dps, 1).' '.Lang::item('dps').')<br />'; // do not use localized format here!
 
             // display FeralAttackPower if set
             if ($fap = $this->getFeralAP())
@@ -1329,12 +1329,12 @@ class ItemList extends BaseType
             if ($mask & (1 << $i))
                 $field = Util::$ssdMaskFields[$i];
 
-        return $field ? DB::Aowow()->selectCell("SELECT ?# FROM ?_scalingstatvalues WHERE id = ?", $field, $this->ssd[$this->id]['maxLevel']) : 0;
+        return $field ? DB::Aowow()->selectCell('SELECT ?# FROM ?_scalingstatvalues WHERE id = ?d', $field, $this->ssd[$this->id]['maxLevel']) : 0;
     }
 
     private function initScalingStats()
     {
-        $this->ssd[$this->id] = DB::Aowow()->selectRow("SELECT * FROM ?_scalingstatdistribution WHERE id = ?", $this->curTpl['scalingStatDistribution']);
+        $this->ssd[$this->id] = DB::Aowow()->selectRow('SELECT * FROM ?_scalingstatdistribution WHERE id = ?d', $this->curTpl['scalingStatDistribution']);
 
         if (!$this->ssd[$this->id])
             return;
@@ -1358,12 +1358,15 @@ class ItemList extends BaseType
         if ($ssvArmor = $this->getSSDMod('armor'))
             $this->templates[$this->id]['armor'] = $ssvArmor;
 
-        // if set dpsMod in ScalingStatValue use it for min (70% from average), max (130% from average) damage
+        // if set dpsMod in ScalingStatValue use it for min/max damage
+        // mle: 20% range / rgd: 30% range
         if ($extraDPS = $this->getSSDMod('dps'))            // dmg_x2 not used for heirlooms
         {
+            $range   = isset($this->json[$this->id]['rgddps']) ? 0.3 : 0.2;
             $average = $extraDPS * $this->curTpl['delay'] / 1000;
-            $this->templates[$this->id]['dmgMin1'] = Lang::nf(0.7 * $average);
-            $this->templates[$this->id]['dmgMax1'] = Lang::nf(1.3 * $average);
+
+            $this->templates[$this->id]['dmgMin1'] = floor((1 - $range) * $average);
+            $this->templates[$this->id]['dmgMax1'] = floor((1 + $range) * $average);
         }
 
         // apply Spell Power from ScalingStatValue if set
@@ -1519,8 +1522,8 @@ class ItemList extends BaseType
             $json['dmgtype1'] = $this->curTpl['dmgType1'];
             $json['dmgmin1']  = $this->curTpl['dmgMin1'] + $this->curTpl['dmgMin2'];
             $json['dmgmax1']  = $this->curTpl['dmgMax1'] + $this->curTpl['dmgMax2'];
-            $json['speed']    = Lang::nf($this->curTpl['delay'] / 1000, 2);
-            $json['dps']      = !floatVal($json['speed']) ? 0 : Lang::nf(($json['dmgmin1'] + $json['dmgmax1']) / (2 * $json['speed']), 1);
+            $json['speed']    = number_format($this->curTpl['delay'] / 1000, 2);
+            $json['dps']      = !floatVal($json['speed']) ? 0 : number_format(($json['dmgmin1'] + $json['dmgmax1']) / (2 * $json['speed']), 1);
 
             if (in_array($json['subclass'], [2, 3, 18, 19]))
             {
diff --git a/includes/utilities.php b/includes/utilities.php
index 4183a0e4..cca4908d 100644
--- a/includes/utilities.php
+++ b/includes/utilities.php
@@ -1067,7 +1067,8 @@ class Util
             else
                 $c = 2 / 52;
 
-            $result = Lang::nf($val / Util::$gtCombatRatings[$type] / $c, 2);
+            // do not use localized number format here!
+            $result = number_format($val / Util::$gtCombatRatings[$type] / $c, 2);
         }
 
         if (!in_array($type, array(ITEM_MOD_DEFENSE_SKILL_RATING, ITEM_MOD_EXPERTISE_RATING)))