I was using Tufo Jets with Tufe extreme tape on Reynolds DV UL aero wheels few years ago and I will NEVER use them again. If you search my posts then you may find a longer explanation why. I didn't have money and time to experiment to find what role played Tufo tape and tire in making me noticably slower compare to Mavic SSC SL or new Reynolds DV UL setup with Vittoria Crono EVO CS glued with Mastik One. Read the following for a harder proof: www.engr.ku.edu/~kuktl/bicycle/Part7.pdf.