[crazyjr]

So the short answer might be, that the 15c would be better for hv apps., like 4 to 6s and the 20c would be better for hi amp setups, like 2s.

Starscream, we were having a theoretical discussion and vehicle did not enter the discussion, however if i had them, they would be used in my G2R with a mambamax esc and a bk wanderer 9XL, geared to about 30 mph (racer, not basher), I don't think i would hurt either one in my setup.