IMHO, after doing almost 3 hours of shihonaga during a seminar last saterday, it is nage who determines if uke can/may roll out of the technique. If nage releases uke in time (provided there is enough space), uke can roll backwards and stand on his feet. However, if nage holds uke in a firm grip and brings uke down.....don't even think about rolling, it is not good for your wrists. Call me a coward but I try to keep myself intact while learning a great deal at once and even with that precausion, my wrists still feel sore today
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