How much angle pen do you need vs flat unangled armor plates?
Considering that all the tanks that Germany faces at br 3 use angled armor or angling I imagine it’s quite important.
not to mention uncapped ap falls off at range hard so at 200 meters it has maybe 6mm more flat pen than the pz4 f1? So yeah the heat is just better even without the doubled fire rate
Give 7 M61 APCBCs and keep other M72 shell similar to old Pz.III N.