I've had the problem of a pricking 'walking' on the pillow once or twice. If the pricking isn't anchored well at its ends where it meets around the pillow, it can shift. This is more likely to happen if your pattern isn't wrapped around the pillow: for eg, I'm working my table ribbon (unfinished) on my roller pillow, and since it has ends, my pattern is 36+ inches long, and if I'm not careful it can walk a little to one side.
Sometimes the problem is as simple as the pillow not being level, and one side is bigger marginally than the other. Especially true if you have to pad the roller a little to get the repeats to match up at the ends of your pricking. When I've worked on a roller, I make sure I leave several inches of pins in the lace and I pin the pricking itself to the roller every few inches, and not just at the start/finish. Take care doing this - if you don't pin it precisely, your pattern will walk to one side or the other. Good luck. Cheers, Helen, Aussie lacemaker in Denver - To unsubscribe send email to [EMAIL PROTECTED] containing the line: unsubscribe lace [EMAIL PROTECTED] For help, write to [EMAIL PROTECTED]