Originally Posted by gaucho777

+1 to checking hanger alignment. That was going to be my first suggestion. Also I've found sometimes those claw mounts put the RD/upper jockey wheel quite far from the FW. If you are going from a hanger-mounted Cyclone to a claw-mounted VG-T Luxe, I suspect you also greatly increased the "chain gap" (the distance along the chain from where the chain contacts the cog to where the chain contacts the jockey pulley). Coincidentally, I was experimenting last night with a claw-mounted Vx RD last night and noticed this large chain gap. The greater the chain gap, the more sluggish a RD may feel and may require more overshift since the chain can bend slightly across that chain gap. This could be as much a reason for decline in shifting performance as the shifters.