For the record:
1)Please be aware of the fact that I only divide the distance of max. ONE DIAMOND by 3 (not the number of the complete distance for a shorter/ longer distance)
Why/ when division by 3?
- different speed when dividing by 3. (2.5=firmer speed thanusual speed2)
-normally when the OB is laying at a different spot than eg. on the corner line, the starting point at the shooter's rail slightly changes and normally we have to adjust for that in a second step. Dividing by 3 levels this out pretty good without having to readjust.
-The system includes the fact that
2 diamonds on the long rail is not always equal to 1 diamond on the
long rail but having a ratio of 2:1.38 to 2:1) (depending on the kick angle)
For speed 2 I aim through the starting diamond and through the diamond of the rail I kick at to get the desired point OPPOSITE the rail at the endrail using the conventional 2:1 ratio.
To find the 2:1 ratio you can use different approaches like taking your cue over the CB pointing to the rail you kick at and finding the correspondent point at the starting rail that has to be exactly the double of the rail you point at with your tip.
Sometimes we have to play around til we got exactly the perfectly matching two points.
Next approach would be conventional approaches like by the midpoint approach or multiple others as Scott Rohleder describes them in detail and very good here:
http://www.poolstudent.com/2009/09/16/one-rail-kicking-systems-2/
only difference is aiming through the diamonds instead of the point opposite rail when using speed 2.
After having found the desired aim point at the rail for speed 2 for a point maximally 1 diamond longer than where the OB is laying, just make the adjustment for speed 2.5 and the little different stroke by dividing the remaining distances by 3 and substract the result from the originary aim point that has lead you max. 1 diamond too long.
Using sidespin with speed 2.5 requires to adjust 0.5/ 1 diamond on base of the already adjusted aim point for speed 2.5!
merry x- mas to all of you!
EKKES
To all of you sceptic ones :
Print out and give it a shot at the table ;-)
Normally