I'sounds like you're on your way. I had a similar experience; after an hour or so of practicing on my trainer, I started riding with them and haven't had a fall in about 1,000 miles. (a couple close calls though).

I leave the clips as loose as possible so that I have no trouble getting out. when I crashed a copule weeks ago, the shoes came off just fine. have never had problems with falling out of the clips though ymmv.

and all my clips / shoes are craiglist specials