First- If you drink the Shimano Kool Aid some rub is ok... Second- Only one tune up with the purchase? Spot adjustments are common and different systems will need care at different rates. Third- The current 10 spd systems are a LOT more sensitive to everything being spot on. Fourth- I use the cable to shift the ders (pulling on a stretch that's open, one reason to dislike internal routing) before dealling with cable tension and the lever's controlling the shift. This seperates the der aspects from the lever/cable ones. Fifth- some bikes need much more fine tuning of der positioning. Height off ring/angle of cage/ limit range and cable tension. There's a lot of variables going on and patients is needed to REDUCE the rub as much as possible. BTW even the crankset has an influence or the rings' straightness. Andy.