Hi. I have just bought a pattern for a beret which uses straight needles instead of circulars. I, like many, hate doing seams. The yarn is Sirdar Escape d.k. [don't know if it is available yet in the U.S., I am in the U.K] and it is a self patterning yarn. If I want to use circulars, so I knit in the round rather than straight, can this be done? i.e. do any adaptions have to be made?