I was just using Prestige Mids. Didn't do many reviews besides liking the TGK layup a little more than the retail Prestige and enjoying my run with the PC600 but it is the toughest to use of the 3. I have hit with Bad Call's Dunlop 100 and would probably recommend that over the prestiges because it comes so light...you can mod it however you want and the feel is fantastic. Obviously mids are going extinct it seems, but if you wanted to use them, I personally think the Dunlop is the best of the bunch due to it's price, feel and mod able light weight. I should add that the new Bio looks like they beefed up the swing weight a little, and could be a true sleeper for someone wanting a mid.