It is just a matter of time...
butterrkoferi can get NASTY , in addition to getting huge.. i think there growth rate is much faster than tradition africans
The butti will kill all your other fish soon after it acclimates.
I guess you gotta ask yourself if you're a really lucky guy or not. Are you the kinda person that always has a parking spot in front when you drive up somewhere? Do you buy lots of lottery tickets because you win half the time you buy scratch offs?
If you like tempting fate, and lucking out of the circumstances, then by all means, try to keep a Butti in a tank with a bunch of other fish with different levels/perceptions of aggressive behavior. See how it works out.
Post videos.