-Response is continous, fast, more into the flats, quick on edge. Recoil is three stage, slow, tons of pop. Reflex is a progressive rocker, with more of a stiffer center, and softer flex on tip and tail like a snowboard, it's going to be a great rail board.
-Find pictures or watch the slingshot surf expo video.
http://thewakeplace.com/videos/EXPOSlingshot.html -Response, into the flats. Recoil, wake to wake tons of pop. Reflex, rails.
-again check video or surf expo pics, I'm not going to do all your research for you.
-SS 4 hole mounting reduces heel and toe lift, and gives you a more responsive feel on the board. Much better than traditional mounting.
-Durability is great, mine lasted a hard season until they broke, and SS's warranty is second to none.
-Bindings are like butter, none better.