The RacerX Twig XL was originally designed to swing 3" props, but will fit 3.5" props without any issues.

As I used to fly mostly 3" Toothpicks on 3S, I still have quite a bit of 3S lipo in storage. Hence, I decided to try this build using 6S by connecting x2 3S lipo is series.

Interestingly even without throttle scaling, the 3950KV motors are just warm flying on 6S.