I know, historical, sherman tanks armor was more harder than panzer 4, but sherman's armor 160/80 is not match for PZ4's 180/90.
of course, that panzer 4's 180/90 armor is acceptable but 234/90 is too much gap with historical sherman.
the Ideal, Panzer 4's side skirt bonus deleted is Ideal (with skirt at first with 180/90 armor and 640HP)
but If Pz4's skirt bonus not deleted. then all shermans(75,76,caliope) frontal armor buffed to 200/100 (Easy 8 : 250/120, Dozer : 250/100) is right for ordinary rate.
and sherman HE shells penetration is not match I think.
HE shells were made for crush bunkers and buildings, but 25 penetration cannot crush them clearly. So I suggest Sherman 75mm HE shells pen buffed to 45/45/45 and sherman 105mm pen buffed to 90/90/90 (Brumbar is 140/120/100, same as AP of sherman tanks)
and sherman 75mm and 105mm's fire rate could be slightly Improved.
I think 5.6~6.0 seconds 75mm reload time to 5.2~5.7 and 6.6~7.3 105mm to 6.3~6.9 seconds.
how do you think about it?