I deleted that folder you mentioned, and tried to switch to Amplify for mage CC, but it *never* uses Arcane Barrage and just chains frostbolt (I'm arcane spec) so it dies a lot...
Is the actual range that it detects hostile mobs different from the "pull distance" setting? Is this setting coded in the CC somewhere?
edit: It looks like that pref file was messed up and not saving my Pull Distance choice, which is doing correctly now, even with Fpsware Mage. Thank you!