I have recently purchased 2 blx six one 95's (black and red) and found one plays great and the other not so much. I noticed one swung much easier and seemed to be missing some mass compared to the other. I popped open the trapdoor on the butt cap and found that one I liked had foam in the handle and the one I didn't was hollow. I also weighed the racquets and the one without foam is only 2-3 grams lighter than the other. So I have 2 questions: 1. If you own a six one 95, is the handle filled with foam? 2. Can a few grams really make a frame feel so different than another of the same model?