I have a 20/52 Fastrack, wanted to see if there is an easy way to increase blade tip speed (within reason), to help improve cut quality. It has been really tough here in the Northeast this spring! Lots of rain and tremendous spring growth. I am looking for any way to help my situation and minimize the need to double cut. So far I have: 1) Cleaned deck thoroughly and applied Mo-deck..helped. 2) Took off Gator Blades and started running doubles (Hustler Fastrack Hi lift on bottom, stock Fastrack blade on top). Helped alot more!! Deck staying very clean at this point, clippings are much less than with gators. No noticeable loss of power as long as I stay with 1/3 rule. 3) Checked engine speed. Running around 3475 rpm max when wide open, no load. Can I switch the clutch pulley to a different size? Is the MiniZ/SuperMiniZ pulley for the 20HP honda the same on these two mowers? Interchange? How about increase in engine rpm (again within reason..say to 3800-4000)? Please advise. PS: My Fastrak is already embarrassing my neighbors Toro Timecutter...How do I know? I watched him RAKE his yard tonite after he cut with it. Fastrack was already washed up and in the shed, taking a 4 day rest. Great Mower.