In recent memory I've been down 3 times. 19mph low side when tires slipped in a curve, shoulders and head took the hit. Other one was a whole box of stupid and I went down on the side and wrecked a helmet hurt my shoulder to the point I haven't lofted weights in over a month and I can't sleep or sit in any comfortable position at the moment, hands on the bars that time too.
The one time I've been otb was on a cross bike showing off for my kids and hopping up and down curbs. Was trying to do it slow and make it look cool on the last one and I came up short. Otb, used my hands, broke my right thumb and STILL landed on my head/shoulder.
I don't try to use my hands, mcmap and other training always taught me to try to land flat and spread the impact so that's what I attempt to do but frankly otb usually causes panic (in me) and hands go out anyway.