Hi all, I have recently purchased 2 Ampflow A40-300's for my Heavyweight drive, and was wondering what speed controller you would recommend for these beasts?
https://static.rapidonline.com/pdf/37-0286t_v2.pdf

The ultimate of course would be a pair of Vex Pro Victor BB's, but do you think some Robot Power Vipers would handle them?

I'd appreciate any advice.

Cheers!