I'd just like to check with the experienced crowd (that would be you 

 ) as I've nevered gotten around to using CBM before: I don't suppose any of the magic paths of summonable mages are changed in it?  Everything else I can figure out in the game, and I've seen an item forging reference floating around somewhere I can dig up, but I'd rather not face nasty surprises when I summon certain creatures to expand my magical diversity. 
Edit: I'm fine with 7 too.