Put a 14-16 strand fast flight string on it-- and work at a clean, snappy, crisp, dynamic release (as opposed to static). These 2 things have made a dramatic diff. in the performance I get out of self bows. Good Luck-- Its a inexpensive thing to try anyway.- Narrowing the tips will help some, but there is a risk here of making them wippy, if you do not have suffiecent thickness.