My main piece is the Barone Jazz, however I play the Guardala Crescent about 25% of the time on gigs. The throat of the Guardala is much smaller, therefore the cork compresses to much for a good fit on the Jazz. Is it better to bore out the small one or try an add some material to the larger one? And how? / what? Also, my bite plate material on the Guardala Laser cut grows!!! I've had to trim the edges with a pen knife a few times at the cost of a few finish scratches. Anyone else have this problem? Is there a substitute material? How to fix it?