First bridleless and even the combo of bridleless and bareback riding is the end result of GOOD training. What you see Stacy doing is over 800 hours of training with a saddle and bridle and then anouther 200+ hours with out a bridle before she ever tried with out a saddle.
Just work on good training and the rest with the right horse will come.
Start with perfect ground manners, then perfect saddle manners, make sure the horse responds to leg pressure and can stop and turn just by your body shifting. Then go from there:) good luck! Posted via Mobile Device
Basically the way I train, I teach leg & seat aids from day 1 in riding, using the reins as a back up to these primary aids. So to me, bridleless riding is just about the horse being good enough to be reliable without resorting to the backups.