I learned this trick really easily, and I think being able to fall out of your R2R really helps. I mean you see the landing more than half way through.
To prep, do a few poppy w2w R2R where you as soon as you land get into a cuffed slide almost like you're over roatating.
Then when you try it, do more backroll than 180 off the wake, but pull with both hands to you're back hip and you'll be golden, falls shouldn't hurt at all. I've never taken a bad fall other than over rotating and slipping out over my toes.