[QUOTE=Sheldon Brown;5297349]Correct. This is a widespread superstition. Good quality quick releases hold as well as nuts, if not better.
See: http://sheldonbrown.com/qr

Mr Brown.
I must preface that you have likely forgotten more about bikes, than I may ever know, but that statement is patently false in regards to my experience.

OFFROAD, I MUST use a tug on my Surly hub and steel track dropouts. The thing would dance with a QR hub on the track ends.

I notice subtle chain tesion variance after several hard backpedals even when using a tug and track nuts.

not trying to be disrepesctful, but my experience is contrary, not a superstition.