The last two or three times I went to Hopkin's Super Billiard Expo, I hung around one of the cue company booths for an hour or so where they had low squirt (low cue ball deflection, LD) shafts available to try out for as long as the customer wanted. I'd say that at least half the people who came up and tried and eventually bought one of these fancy, new, accurate, expensive "LD" shafts never hit a shot with side spin during the test shots. They didn't actually understand what all the commotion was about, but they knew they had to have one. I think it's possible that some of them never, ever used side spin.