Bitteroceania2

Hey all, Just a quick question I could do with some advice on. I'm fairly new to using inventions and procs so apologies if this is a stupid question! I'm using TW/Bio and wondering where would be best to put the two brute set procs. It seems logical to put them both in genetic contamination due to my slow attack rate, but someone mentioned in game that it's a waste putting procs in a toggle. Any advice on this at all? Thanks in advance!