I was also shocked by the precision over such a large angle range, both with the analysis plot and the results at the table (in the video).Great stuff, Dave! It is one thing to "kinda sorta" know how to hit a close combination, but I had no idea there was a sweet spot where you could hit the shot almost anywhere (up to half ball or so) and still have the combo go straight.
Thank you for asking this. It encouraged me to add a new page to the analysis file. Gaps between 1/4" and 1/2" give good results over 15-20 degrees. 3/8" has superior accuracy, but 1/4" offers a wider range of angles with decent accuracy with faster-speed shots. Check out the plots on the new last page.Along the lines of your last graph in the second link, have you considered what the upper and lower bounds are for the 3/8" gap shot where you can still expect to pocket the ball straight in? I know it depends on shot length and pocket opening, but let's say I estimate a 1/4 inch gap. Can I figure it will still be straight with maybe a little throw, and vice versa for a shot that is closer to 1/2 inch?
Regards,
Dave