No the sportjet wear ring is a straight bore, and OB jet is tapered. There is no way to shim them tighter. You may not need any new parts, you would be surprised how good just tuning up the leading ed ...
Mikey stay away from the Solas, unless they have improved them in the last year they are junk. ________ [URL=http://www.ferrari-wiki.com/wiki/Enzo_Ferrari_(car)]Enzo ferrari (car)