Sounds reasonable. The reason I tried to develop a constant speed stroke. Next to impossible, I never succeeded. Using gentle acceleration I developed cue ball control within an inch playing position.
I have to admit that I used precision position play to block myself more often than the other player. Had to let them think they were in the game. They could look at the last game, "If just that one shot had went different..."
A canny road player scouted me for three nights then decided to talk instead of playing. "The first night I thought you were lucky. The second night I still thought it might be luck. Nobody in the world gets as lucky as you three nights in a row." I was only busted a few times in years though.
Smooth acceleration got me pinpoint control to half a cue ball, sometimes a lot less when I deliberately shot into ridiculous gaps or hung myself by a quarter inch or less back before jump cues. I could have still jumped but the idea was to hook myself. Back in the eighties when the cloth was still thicker than today's and my eyes were better I used to be able to rock a ball and get in behind it.
I can't say it is true for everybody but for myself I was much more consistent with a gentle acceleration than trying to hold a constant speed. Constant speed seemed to be the holy grail and I tried very hard to make it work. Thing is that requires a transition between acceleration and a constant speed and was far more difficult than a gradual acceleration.
Hu