BiG_JoN:
What's the big deal with disengaging the carriage ( I think you mean cross slide)? I have a 12" x 36" metal lathe set up with a tapering bar (same as Hightower's bar) , and all it takes is ONE bolt to set the cross slide free. A couple of springs to keep the roller bearing running along against the taper bar and that's all there is to it. Granted, I did drop about $500 into this lathe to set it up for cues, but I think it is better in the long run - much more stout than a cue lathe and probably more accurate.
Todd L
Scottsdale