I got a little more work done on the 2nd panel this evening. It's looking a lot more clean than the first one.
The adhesion isn't going to be super good on the back, but I'll be able to trim out the couple of big wrinkles when it cures. I didn't use any peel-ply type stuff this time. I just wet the fabric down and pulled it around the edges. It seems like the sharp edges came out really clean this way. The peel ply might still be a good idea for any flat surfaces like the back.