I didn't taper It down or convert It, but simply cut in 2 and made a 2pc from a dufferin that had about a .935 joint. It broke racks like a mac truck, until one night when I cracked a rack with just about all the snap I could muster up, then the shaft practically exploded in My hand. I learned My lesson, and that was probably the last time I will do a cue without a collar. The cue played alright, and It did have a stiff joint. There wasn't much vibration in the joint area or the cue as a whole for that matter, but due to the stiff taper of the shaft, It also didn't have much flex, so I'm sure that didn't help My situation.