The other thing I like about the idea of unperking the T-34/85 and M4A3(76) is that you could then bump the ENY on the Panzer IV H to something in the 20ish range, which would leave the side with numbers an inferior but usable tank once the perk tanks, T-34/85 and M4A3(76) were disabled by ENY limits. Right now the perk tanks and the Panzer IV H get disable, leaving the side with numbers to try to fight Panther V Gs, Tiger Is and now Tiger IIs with only T-34/76s and M4A3(75)s, a near hopeless task no matter the numbers advantage.
Because the Panzer IV H has a decent gun it could at least offer a fighting chance against the super heavies.