I'd much rather advocate expansion army repair speed to be nerfed to match OST and SU repair speed. Taking a tank out of battle for repairs should be a tactical thing.
To people who say DPS "falls off" at vet 2: Do you guys even bother factoring in the armor of the target? What about the chance for those shots to be misses (because accuracy got buffed too)? Because the "math" you guys do only applies if the SU-85 is shooting a kubelwagen at a theoretical and impossible 100% accuracy.
Ugh. You guys need to not be such armchair theorists.
+1, the "weakness" is the 15s switch time already, and a +20 pen buff or something would help against med tanks while still giving heavy TDs like elefant and jagdtiger an edge over it.