No, does not discourage using multiple heavy tanks (it only delays them a couple minutes). Also would punish mid-late game tech more restrictive, such as skipping a T3 unit that would be really useful because you need T4 to get your doctrine unit.
Limit one super heavy per player and remove fuel cost- problem solved. Some people keep saying "but fuel was useless in coh1 late game blah blah blah" but its a bunch of horseshit. WM always had something to spend fuel on, US with heavy infantry focus was less dependent on it but controlling the fuel points was still important for the pop cap and denying it to the Axis player. Manpower is the more important resource in the really late game anyway. Making mid game armor a less attractive choice because sometimes people don't focus on tank spam late game is stupid.
