hi there
I am amazed that nobody picked up an idea which has been arround for quite some time.."mushroom" aka "flip-flop".
1) flip-flop or mushroom "footstraps" is the absolute simplest and safest way to keep your board in good position while waterstarting... and soon you don't need anything on your board at all....
2) in addition a snowboard typ board helps the beginner tremendously.... waterstart is much, much easier because the board sinks halfway in the water and its surface allows getting up like a piece of cake....
andreas