I agree here. from the stats the p4 has a penetration advantage over its counter parts (cromwell and t34). This is because they have 160 armor whilst p4 has 180.
Half the shots that could have penetrated end up hitting the ground or missing. This is precisely why the cromwell is so good. It has almost same long range penetration as p4 but has excellent moving accuracy.
The only thing p4 needs is an accuracy buff whilst standing and moving.
It is actually accuracy in general. For a tank that is supposedly so much better armoured than its counterparts to the point it has such a low penetration, it should at least hit often enough to make up for that.
Increasing the accuracy might require increasing the fuel cost a tad. Like 135, if we are talking about about %75 and up.
But you guys are correct, the current accuracy(scatter) value is laughable.
I'd rather see the actual armour and penetration stats remain the same, and instead see the moving accuracy of all tanks adjusted. As a start, all tanks should have a 50% penalty against other vehicles, while some tanks like the Sherman (which is primarily an infantry support tank) should keep their penalty or receive less of a penalty against infantry. That would level the playing field considerably, and finally equalise things between Cromwell and Panzer IV.
That isn't a bad idea, but the Cromwell is the only unit in need of that treatment IMO.