I've just been watching some online videos of kneading by hand and I think I may have been doing it incorrectly all this time.  I've got the basic premise down but in all the videos the baker seems to be going much faster than I ever do.  I do a VERY SLOW push away, fold over, 1/4 turn method.  In the videos, they are moving much faster and not pushing as far out as I do.  When I push, I push with one hand and hold the bottom of the dough back with my other hand.  Any thoughts on this?