I can do that one 1/2 the time and agree wholeheartedly, it's one of the most dangerous ones to get wrong!
Except I hadn't thought to take the step backwards, that sounds like a much better option than throwing it forwards as i do at the moment. It might resolve the angled wpin I havent been able to get rid of yet either.
I tend to use my practice staff (wooden ikido) for this one too and wrap t-shirts around the ends as I will always hit myself in the head at least once (or shoulder if I dodge fast enough).
Also noticed it's much easier with shorter staffs than mine. Mine are all 1.5 metres, but I'm looking at making some 1.4's for doing double staff better. I'll try it more often with one of those and see what happens.
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Charles Dolbel