what would be a good esc for 1/10 stadium truck and 1/10 4wd buggy respectively, planning on running around a 7.5t motor. I noticed the viper esc's don't have fans and I didn't know if heat would be an issue in these platforms. I am happy with my copperhead for sc and vtx10 for stock buggy. Would like to continue using viper stuff since I already have a progauge.