was wondering how you guys decide when to add/ remove shims in your ride plate, shoe, and or change your loader grate around. how big of a diffrence does a fine tune nozzle make? and if any of you rogers tr guys could help me out on some base settings i'm running a b impellor/ cav reducer in a blue printed pump with open center grate, shoe is 2 deg backcut has an agressor droop and normal place diverter. turns 5900rpm. but dont think its running as fast as it should be :idea: thanks in advance Adam