well. i have heard that it works pretty well. but you have to know how to reconize if your quad is lean on the fuel mixture, or its rich, and where are its symptoms in the powerband, and which jets you have to adjust to get the problem out of there, the dial a jet only controls the main jet. so if you have a problem in your low end you have to dig into the carb anyways to re jet that. there is a jetting how-to in the how to forum. you might want to check that out to help you become fimilar with jetting. i hope i helped and welcome to the site.
-steve
Trx 450R - BACK IN ACTION!!!
*2005 CRF450R*
Pro-Action Suspension
Pro-Circuit Ti-4 Full System
Acerbis Hand Guards
Hot Cam Stage 2
Hotrods Crank
JE 12.5:1 Piston
2000 Mustang GT
WAY too much to list, and still too slow