Power levels on TW: Wilson PS85 - Low Head PC600 - Low Wilson PS95 - Low Head Microgel Radical OS - Low Avery M5 - Low Wilson nFury 100 - Low-Medium Wilson W5 Divine Iris - High Gamma Big Bubba - High The Avery M5 and the MG Radical OS may be low powered for OS racquets but compared to mids they are more powerful. I think you should start defining some racquets as "Very Low" when it comes to power. In the Big Bubba's case as "Very High". Also, I never hit with it but according to the USRSA the nFury is as powerful as a 1980's Dunlop Max 200G. My 2cents.