If you turn bowls, you want the tilt away. If for no other reason, it shares the bearing load with the headstock for when you are roughing and rounding out a blank. I did wear out a set of headstock bearings on my PM3520A in about 5 years. I never used the tailstock. The tilt away takes almost all the work out of it. I am not sure if he changed the design of it or not, but with the Liberty, there is one bed for the tailstock. With my Beauty, there is one bed for the tailstock, and when you tilt it away, there is another short one at 90 degrees to the one the tailstock slides of on to before you tilt it away. I have bumped my hip on it several times.
I also have considered filling the diamond tube with sand, and even the spray expanding type foam just to dampen some of the noise. Not important enough to get excited about. It does make different noises than the PM did.
robo hippy