I have those on my bike now but I havent ran them yet. From what I know, the rezzies are more to help with fade, and increase the longevity of the shock. I had Works with remote rezzies and all the stuff they offered, and I never changed anything but the ride height, and they lasted me 4 years, and still had a full charge. I figured Id give the Elkas a shot because everyone raves about them, and they have a higher price tag.
I would definately go with +2+1 arms and shocks like that. The YFZs are nice for recreational riding, but after all is said and done, they arent made for a banshee like +2+1s and the right shocks are, plus the front end sits lower.