Stuthepirate said...
Look Mtmimba, it's basic geometry - The trisect system applies only for cut angles in the 0deg-40deg range. This corresponds to ball-hit fractions greater than about 3/8. Use your hand to estimate the maximum cut angle for which the trisect system applies. For most people, if you stretch your peace sign fairly hard, the angle will be very close to 40deg. Another requirement of the trisect system is that the CB must have a typical "good action" amount of backspin. If you aim the center of the CB through the edge of the OB, a "good action" amount of backspin will send the CB perpendicular to (90deg from) its original direction. Reflecting back, the trisect system predicts this because aiming center to edge creates a 1/2 ball hit, which is a 30deg cut angle, and 3 x 30deg = 90deg. It is possible to get slightly more draw than this if you really push the miscue limit. It is also easy to get less draw if you hit the CB too high or don't use enough speed. You first need to practice this shot to develop a feel for "good action" draw. This system applies only for "good action" draw shots. If you have too much backspin, the CB will draw back at a tighter angle than predicted; and if you have too little, the CB will draw back at a wider angle (closer to the tangent line). Note also that the required tip offset on the CB will vary some with shot speed and distance, and with table conditions. With more distance between the CB and OB, you will need to hit lower on the CB; and if the shot is too long, it might not be difficult to achieve a "good-action" amount of draw (especially on a "sticky" cloth).
I feel sorry for pirate....
....all that effort and not 1 damn thumb!!