I just installed some Juicy's on my 4 Banger and couldn't be happier. I've been wrestling with some old, old single piston Louise brakes and some original Hayes Hydro's before that. If my bike weren't disk only I would have happily gone to back to arch supreme's when my Louise rear finally crapped. But I went with the Avid Juicy and couldn't be happier. On the first ride the power and modulation were great. I'm going to have to get used to true one finger braking for the first time in my life. They mounted in less than 15 minutes for both front and rear. Then I used the adjustment lever to set the engagement point exactly equal with the levers close to the bar, just the way I like it.
Big Thumbs UP.