James ,

I had some JR venture 30 dampers lying around and tryed them after my original shuttleplus ones wore out ,worked very well much stiffer feel.. , i think you can buy K&S ones that work for shuttle also. . i also shelled out for a new swashplate because the stock one i got was crap. i learned to fly on a shuttleplus , and still fly it , its a nice heli. i also had the tracking problems with the shuttle at first. not as major as yours but i always found that tracking would be off every new day i went flying... got new metal swash , dampers and added all the neccesary bearing upgrades in the rotor head and the tracking probs went away and flew great, really tight. hope you get it sorted.