Hello, tried a search but got no answers. When I installed my 5% supercharger pulley I put on the 3" tensioner pulley as well as one size shorter belt. Have had no signs of slippage. Now I have installed a 5% jackshaft pulley too. But I could not get the shorter belt on so went back to the stock length. Gonna keep an eye on it, but wondering if ill have any issues. Thanks, shawn.