PKM said:For fractional ball aimers, how would you respond to Dr. Dave's illustration of a cut shot in between a 1/4 and 1/2 ball hit. His point is that you are just using them as reference aims, and you have to make an adjustment. This is allegedly Hal Houle's system, although as I recall Houle denies this is an accurate representation
Source: http://www.engr.colostate.edu/~dga/pool/technical_proofs/index.html (TP A.11)
Ya gotta pick from one of my 5 degree intervals! lol
Actually when I put this together, I was amazed at how long the differences remained so close to being the same until the last 15 degrees or so. Okay, maybe I should explain what this is. This is a ghost ball over object ball image for every shot from straight on to 90 degrees at 5 degree intervals, not allowing for throw. Incidently, a 2 1/4" object ball from two diamonds away (25") on a nine foot table is nearly exactly 5 degrees from edge to edge.
Basically what I noticed is that straight on to half ball hits vary roughly 3/16" for every five degrees cut and then as you start aiming outside the object ball, it's a little closer to 1/8" for every five degrees cut, and then it drops off fast right at the last 75-90 degree.
If this makes no sense, I'll try to explain it again somehow. I just think this might be interesting to keep in the back of your mind.
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