The reason im saying to go with mechs over the hydros for street and DJing is just because of everything that can happen. Also, do you really need hydros for either? My Avids worked better than my friends HFX-9s, had more power too. 45lb bike with a 165lb rider........stopped on a dime, but still had modulation. Ive said this before, but ill say it again. Hydros can kink, or the line can snap......and its expensive for something you dont need. If you DH, or FR where you need precise braking, then I can see it. But, just to have a set of easy mechs that you can repair yourself, dont need a $20 bleed, just a $3 cable, are much easier. DONT get the Hayes mechs though, I had to swap my front Avid for a Hayes, and o my god. I can jam 4 fingers on the break lever, and yank, and barely stop.......takes me about 10 feet. Avids setup right are great brakes.