I still have the contact problem with Chevron. Again, I tried to use Mercury from Bencher. As I wrote in the previous post, I had had unpleasant rebound feeling with this paddle.
When I held it with hand and handled the levers, I sure felt the excessive vibrating sensation on the hand holding it. It has a thin sheet of cork on the bottom supposedly to buffer the vibration. It was, however, too thin and too hard to work as a buffer. The vibration with keying being reflected by the operating table might enhance the rebound at the finger pieces.
I put a mouse mat for computer made of vinyl and gum beneath the paddle as the photo shows. It has clearly diminished the unpleasant rebound. Not perfect yet but quite usable to me. At the same time, the keying noise was also lowered.
This paddle has no contact problem. So far, I would go on using this until I would like to get another, maybe, some model of Begali.
No excuse for my mistakes in keying for now.