We use the Pro in mod and pro stock. In mod we use Muchmore motors (5.5T, 5.0T, and 4.5T) and in pro stock a LRP X20 13.5T.
We have not had a single issue and regard the Muchmore Fleta Pro and motors as smooth and yet poweful.
We have tried LRP Flow and Orca VX 3 and earlier models.