u run your flux on 6s? if so go for 4S. 6S is just stupid with drivetrain quality of savage trucks. actually 6s with 2200kv motor is stupid in any truck :)
Radek
V4 D8 - RX8, XERUN 4168SD
F1-09 - Tekin RS Pro, 17.5t Redline, 2S LiPo
Sakura Zero S - LRP, Saturn 20T, 2S LiPo
*EX-10 Eurus*