I can only describe it as like a very loose chain. There is some slop or deadspace in the shaft if I don't feather it into gear. I'm used to a quick clutch bite from those Barnett clutches.. Maybe its time for a clutch overhaul? No clue if the last owner beat on it. I've got 11k on the clock. Its almost like a loose u joint if that would make sense?
Okay, that isn't "shaft jacking," that would simply be driveline lash. The C14 does have a rather abrupt throttle from closed to just off idle and that can make the lash seem worse, so that is probably what you are experiencing. What is your idle set at? If it is too low the effect will be pronounced. Some have installed Throttle Tamers to combat the problem. Practice smooth throttle control helps but it still can be abrupt.