I got my son 2 viper VTX10 systems one for his sc10 and one for his B4.1 this is the setup he's been running in his B4.1 he's won 3 races and got second in like 3 since we put the viper system in so its workin well the motor and esc temps are really good like 130 on ecs and 90-95 on the motor but i just wanted to get some input on weather they may be some changes to just make it that much better lol. we love the viper systems and it's helped his control alot