I would like to do two things to my KPS88's. First, I would like to reduce the grip size from 4 1/2 to 4 3/8. Read on the forum that alot of the newer racquets cannot be reduced. Is the KPS88 able to be reduced? Second, I would like to add some weight in the handle to make it more head light. I removed the butt cap and saw that it's filled with a red foam like substance. Can I remove the foam and add some fishing weights? Any feedback would be greatly appreciated. Thanks!