randyg said:
I think it can
If you use cusions. (not clear if u mean spin after impact with a cussion) If you shoot it too soft the 2tip english will fade due to friction to one tip english by the time it gets to the cussion, and so result in the same angle after impact with cussion, if you would shoot it harder, so the english wont fade and the cb keeps a, close to constant, 1tip english it will have the same angle. (aproximative ofcourse, as speed will also vary the rebound angle..)
I think in for example a cb in middle of table and ob against a rail, you can get the same thing, if you would replace 2tips with 1tip + 1tip draw (maybe the exact numbers are wrong, but some draw can do the same thing as side on some shots.
alot depends on the angle that it gets into a cussion, the speed, the friction of the cloth, the grip the ball can get on the cussion. Play a MASSIVE spin shot but let it hit the cussion at 0.1km/h it wont spin (aka the rebound angle wont be as big) as much as if you would hit it at 10km/h, so speed MUST have an influence
math reason why.
spin = X rotations / seconds. if the circonference of a cb = Y cm, you could write it also as km/h by doing ( X * (Y/10000 ) km / 3600 h ) to have Z km/h.
now if you hit the cb with 2 tips of english at 10km/h , the circonference at the place where the tip touches the cb, is bigger then if you would hit it with 1 tip of english. So to get the same rotations/second or km/h you would have to accelerate faster aka "hit it harder".
or am I completly wrong? :embarrassed2:
if you arent talking about cussion contact, IF you play a stop shot with one 1tip or a folow with one tip, the path of the cb wont be the same, so speed does make a difference, so why wouldn't it be possible that 2 tips = 1 tip for cb path after impact.