Ars MAgika Disabled skills :
"Light" (too much entities in the world)
"Rift" (create a dimention)
"Summon" (allow player to summon creatures ...)
AE2

Set search mode by default to "NEI_AUTOSEARCH" (just because i like it )
Change the button on crafting & level emitter to 1 8 64 and 1024
Ore double pourcentage in Grindtone to 80%