I think it does let you move the cue ball easily, but if you are playing really well, you move the cue ball a minimum amount once you get control. At nine ball that's hard to do, so half-ball angles work well, but at other games you are generally looking for fuller shots, down in the 0 to 10 degree range.If there's a cut angle that offers the best combination of easy to make and easy/versatile CB control, what do you think it is?
I think it's the 30-degree cut angle, also known as half ball. It's well within the aiming comfort zone and allows easy, flexible and predictable CB control. I find myself habitually aiming for half ball shape unless there's a reason not to.
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The other end of the range can also come up when you have to move the cue ball a long way and choose a thinner shot to help.
Since I don't play much nine ball, my default choice would be a fuller shot than half-ball. I've been working on my "stun run-through" lately after watching a lot of snooker.