Glad Im not the only one that has problems. They sure can make you feel a real kook.

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I do the unhook > pull down top front line thing. Even when all goes exactly to plan I have often had my REV relaunch after it has settled. I advise to never let go of that one front line as you walk (run) up to fully secure it - even in lighter winds.
And always sand down a REV anytime its sitting on the beach. The buggers are just so keen to fly it seems like theres no stopping them sometimes (bit like me really

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Ben - at what point do you hit your QR ?? I tried this a few times early on and had no success at all.
Fozzy method sounds like a winner - thanks for that one too. At least with that one if it doesnt work first time you are still hooked in and in control.