Nevermind, The link Travis posted is what I was looking for.
I am very intrested in this topic as well. My current table is an older cheaper brunswick with century U56 cushions, no subrails, glued straight to the partical board. This profile inherntly tends to trap the ball slighly, making it slide a few inchs even with proper nose height. I have been kicking around the idea of building a table using the slate I have, this evolved into just building from the slate up, my legs and frame are ok. In all the reading I have done the subrail seems to be the dreaded part, That don't scare me, I can use a table saw fairly well. I have even found blueprint type drawings of subrail profiles. I believe however all the subrails I have found so far are for k66 cushions. My studies have also revealed that 2 of the most popular tables use the k55 profile and the black diamond cushions seem well liked, and are cheaper than the artemis. Problem is I don't have demensions for k55 subrails. Can anyone point me or tell me the angle for rail liners for k55?