Also i have said this in the past, RAM COUNTERS heavy armour, if you see T3 you know T34 are a possiblity so if you build a heavy tank you need a way of protecting it, smoke, interveening light vehicle, fausting the ramming tank while you reverse.
Or just build P4's / stugs where the ram will be alot less effective.
so when can I build heavy tanks if they are so perfectly countered by ram??