- Idle is slightly better than HMD Stage 2+ but it's still pretty rough. Sounds/feels like slight misfires but no CEL. - When I step on it in 3rd at 2k RPM, it is very hesitant and jerky. It shakes a lot and its slow to build RPM from 2k to 3.5k. - As RPM rise above 3k, it stabilizes and it starts pulling.