Thank you all! I did most everything everyone told me. I measured with a level. It was level. I measured and re-did my leaders. I basted upwards. Everything came out perfectly! I'm hoping it will stay that way when I put a queen quilt on the frame! Someone mentioned bowl foot - I use the HQ glide foot, which I really like.
Cindi - The shock cord and toggle clips are just to keep it straight, right? They do not replace the side clips that keep the quilt taunt, right? Also, would you only use this set up on a floating quilt? Thanks!