I have a pattern that is knit from bottom to top, with a yoke, so all the pieces are joined to create the yoke in the round. Is there an 'easy' way to convert this to top down knitting? I am tall and have long arms, so I think top down knitting would solve the dilemna of getting the lengths right. Any comments/ideas/suggestions? The pattern, by the way, is the Rainbow Yoke from Knitscene, Spring 2009.