the only reason showman got the rule it did, was because it gives a CLEAR advantage over every other perk.
it is so hard to hit a finsiher now and you wanna allow showman to use a finsiher whenever they want? showman would never lose! they would win all their matches because they could end it when they want unlike everyone else. that is unfair.
the perks are all unbalanced. the best way to balance them is to remove them and at that point we might as well go back to 07.
personally the way i look at it if people rampage and it looks wrong then they shouldn't be powerhouse or powerhouse shouldn't be their prime perk.
IE: Mayhem/Kage/RD/Malu these can no sell a finsiher.
Double A he shouldn't. to me this means double A should not be a powerhouse. or instead of being powerhouse/brawler he should be brawler/powerhouse so he still gets the moves but he cant rampage. instead he would do the strike perk which i think fits him better.