Re: ski bindings
Be careful with the drop ski. I can't tell you how many I've lost over the years. Most of the time it is from passersby who see a ski floating in the water and pick it up, not understanding the sport, and thinking we've lost it.
Once you can do slalom, you rarely would want to go back to 2 skis. For the next while you will probably get up on 2 skis and drop one right away once you are up. The 2nd ski doesn't have to be much of a ski in order to accomplish this. I built my own drop ski using a fence board crudely shaped to look like a ski. The fin is just a piece of the same board on edge cut in a triangle. For a binding it is only a toe strap made from an old pair of jeans folded over a couple of times. You really don't want the heel binding because it just makes it harder to get out of the ski once you are up. It's spray painted white with a pink diagonal stripe. This makes it easy to spot in the water when you go to pick it up. You also don't cry when you lose it or when someone runs it over (yes that has happened to me, too). I have seen people pick up my "barber pole" and then just throw it back!!