I think waterstarting is one fundamental skill must be learnt when starting out. I taught myselt how to waterstart ...had no choice really and how to sail in fact. Just watched other people and asked questions on the beach. mind you i took in a bit of water but not as must as the board i was learning on. (it was a 50 year old Shane, concrete feel and very short)
anyhow stand in knee deep water and lay down hold sail out of water, place feet on board and throw the sail into the wind. after a while you should be able to start in the foot straps. Once your up and moving get straight into the harness and you'll be planining in seconds.
i've sailed in places where one does not want to be wallowing in the water for too long (Carnarvon and Gnarloo) so i guess that was a strong motivator for me.
i've never uphauld
Have fun be prepared to swallow a little water and have a beer chaser ready for end of session.