obviously i can't speak for others and i'm sure they r great tips

- personally i don't throw the clew, sheet in, or push away the sail, and don't look behind or anything, but all these things may help you. the trick i find is in the corking of the board to get the right amount of pop (and most of the time you don't need much), leaning forward enough so that your head stays over the mast base, and learning to twist the body, hips, and legs like a cat. Don't jump high with the board which most folk do on early attempts. there really is no need
1. comfortably on the plane stand very upright, put your front hand as close to the mast on the boom as possible before popping, doesn't really matter where the back hand is i find
2. pop, then once popped pull downward and across your body with the old front hand (with slightly bent front arm) which helps pull the nose of the board down and generate some of the board spin, sail spin, and gets the sail back across in front of your body ASAP which is the key, and also keep your head over mast base.
some folk have said they find it best to head down wind slightly and this works for them, but i find i can do them pointing quite high into the wind as well, which is probably because of sussing out the body twisting bit
if i got heaps of speed i only jump around about 100 degrees and the rest just slides around. if i'm only just planing i jump the board around almost the whole 180. obviously the further u head upwind the further u have to jump the board around
practice with the sail standing in the switch stance position on land, pulling against the wind as you would when landed. helps with controlling the exit
the only painfull bit is if you happen to go through the "ankle jarring" stage that i went through. you'll be doing them a flavour if you learn them them on freestyle board first

i spent first 6 months trying on waveboard in agony
as far as my footstraps setup - i have them tall but very narrow so the side of my feet are doing all the gripping. i know i go against the grain here, but i personally have my feet tightly wedged into the straps for everything (except pointing upwind) and like to feel like i'm glued to the board. maybe i've just jinxed my ankles saying that

oh and p.s - make sure you try them in both directions right from the start

phew. my longest post in ages