Argumentative? It was suggestion! If I was adding 2amps I would always make sure connection b/n brushes and commutator is clean. I always use motor spray every other battery pack run.

Depends what motors you are running. most stock motor are throw away.inermediate 7 Mod motors rebuild able. In the hobby so long NiCads was the thing in '84. Heavy into AE models and Team Checkpoint!!! lol!!!! RC10 Gold Buckets and Losi!! In this hobby too long!!!

When are you going to Brushless like everybodies doing?? I got rid of my commutator truer in '12 when you turned a member of RCTech. Brushless the fad now, Motor & lipo's the seen now. More power, longer running,quicker, hardly no maintenance. Or maybe just collecting for your museum.

Mah increase only improves on time. More power you have to increase the voltage. Lipos does that. 1s, 2s, 3s & 4s, 3.7v- 14.8v.NiMa add cells like to 8 cells pack.