It appears that Kiwi Girl and I work the clips exactly alike. I'm now on my 4th clipped in ride and I found out the hard way that even though I'm right foot dominant my left foot needs to be unclipped. I posted about my first trip around the neighborhood in my new clips in another thread. Here's the abbreviated version: Came to the a stop sign in my quiet little neighborhood, unclipped my right foot no problem (yay, I thought!), went to put my left foot down and ended up in a pile on the pavement.

My bike is very large, a 63 so, going down was a real experience...

Since then I've riden three times and have been unclipping left only, taking off with right only and it feels really natural. I'll be doing a 40 mile organized ride this weekend it'll be left down for me. Seems to be working so that's my story and I'm sticking to it