People dont talk about the lower armour of the su76 compared to the armour of the stug cuz the su76 has 10 more range and is 25 fuel cheaper.
Also allied armour values with few exceptions are already lower and axis can mostly pen every stock alled vehicle with ease so people accept it and dont complain.
The su76 can pen the ost p4 88% of the time. The vet 2 p4/okw p4 and Anything bigger and chance is 68% at best. Not that it is imbalanced or up but it still isent great pen for the late game. Just the su76 's timing just doesnt excist since the lv fase is tiny and the su76 provides what su dont need at that timing.
90-75 =