Something i caught which dissapointed me...The old 2 pole VXL 3S could take all motors and showed you could. The current manual only shows 1 setup possible and details sigificantly less about
3340 Heat Sink Motor Radiator Cooling Fan Velineon VXL 3S ESC For Traxxas Rustler Slash Stampede Bandit Ford RC Car Boat Plane|Parts & Accessories| - AliExpress
ESC Cage for the Traxxas VXL-3S (#3355R) ESC - RPM R/C Products
Traxxas Slash 4x4 VXL with On-Board Audio & TSM
VXL-3s Waterproof Electronic Speed Control (brushless) (fwd/rev/brake) | Traxxas