The Brute has a symmetric core, and the Reax Gusto has an asymmetric core. The Brute has a lower RG and will start up sooner than the Reax Gusto and they have similar differentials which would give similar reactions. They will have a skid / snap type of reactions with the Reax Gusto having a stronger backend motion. What type of reaction were you looking to get? What conditions were you planning on using either ball?