Basically I'm hearing that you're still experimenting and will probably settle on 1 or 2 variations when you find them. I like that you're doing all of that. I'll never poopoo experimentation for the sake of higher hook-up rates down the road. However, I try to keep my number of variables down so I can keep track of the differences, and maintain a high degree of confidence. Keep up the good work!
Tight lines,
Wade