They're not THAT hard to get used to, Erick! Just ride. Your legs will learn. Vincenzosi's legs have learned, thats why he "clips out" of his flat-pedal Schwinn.
Necessity is the mother of pretty much everything. My bet is that "training" clipping out means you'll take way longer, like riding on training wheels, because you don't NEED to clip out, now, RIGHT NOW, before- Agh!