Just a thought. I noticed similar problems with my Avistar. Some of the experienced fliers even said that I was landing "too hot". I noted that and tried to slow my landings down, but still had problems. After a crackup and fixing it, I decided to check my CG again, and it was a little forward (3/4") of what the manual suggested. Now a lot of Avistars owners I met for some reason need tail weight and I had originally had the battery mounted behind the rear wing holdown dowel, right behind the former there. It took an additional ounce approx. out at the tail to make it balance out perfectly at the recommended CG. Now it takes off better and lands better. You might want to check that.

Good Flying,

Tom