Using the Sid System, where does the contact point begin on the end rail. Each diamond is labeled 10, 20, 30, 40.... But where is 1??? Is it the corner diamond or how does this work? Using the corner as zero doesn't look correct.
Thanks for any input!
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Yes but on the end rail the diamonds are 10, 20, 30, 40.... Where is zero.... What is the starting point for the 10,20,30,40?
For those who are wondering what "System Sid" is, here is the diagram from Walt Harris's book, "Billiard Atlas". To hit a spot on the second cushion, multiply the number for the spot by how many diamonds the cue ball is from point X. In the example, the target is 2.5 and the cue ball (Q) is 3 diamonds from X so the target is 7.5 on the short rail. Note that the short rail (M) is numbered 10 to the diamond, the second rail has a variable numbering that you have to memorize, and the rail you are shooting from (O) is numbered in units to multiply with. Harris recommends renumbering the O rail according to the second rail number, so in the example it would be numbered 0, 2.5, 5.0 and 7.5 starting from X.
If you work out the geometry in detail, the numbers on the second rail are off a little but as listed they are easy to remember.
View attachment 260358
Does the System Sid only work if you are shooting from a short rail (rail O) into the other short rail (rail M)? Is there numbering for the long rail on the left side of the table if I am shooting from there into short rail (M)? If not, is there another diamond system for that shot? Thanks
For those who are wondering what "System Sid" is, here is the diagram from Walt Harris's book, "Billiard Atlas". To hit a spot on the second cushion, multiply the number for the spot by how many diamonds the cue ball is from point X. In the example, the target is 2.5 and the cue ball (Q) is 3 diamonds from X so the target is 7.5 on the short rail. Note that the short rail (M) is numbered 10 to the diamond, the second rail has a variable numbering that you have to memorize, and the rail you are shooting from (O) is numbered in units to multiply with. Harris recommends renumbering the O rail according to the second rail number, so in the example it would be numbered 0, 2.5, 5.0 and 7.5 starting from X.
If you work out the geometry in detail, the numbers on the second rail are off a little but as listed they are easy to remember.
View attachment 260358
Using the Sid System, where does the contact point begin on the end rail. Each diamond is labeled 10, 20, 30, 40.... But where is 1??? Is it the corner diamond or how does this work? Using the corner as zero doesn't look correct.
Thanks for any input!
I agree. And there are several easy ways to do this visually, without any numbers or calculations, as demonstrated in the following video:Yes, there is a simple extension to long-rail first shots. For that kind of shot I think it's easier and more accurate to construct the mirrored target.