[member=67555]mattbyington[/member] one way to correct this issue would be to use one of the dogs that attach to the bottom of the rail in conjunction with a V-block that is outwardly facing on the rail closest to you. You could center the v-block where it makes the angle square, then adjust the dog in place so it contacts the v-block at two points. that way every time you put the slide down the v-block centers it to the correct location.
That make sense?