CaptainJ, I do consider limb twist or offset before I cut single side nocks. I don't know if it matters but it makes me feel good! d;^) You can do single side nocks on any bow. Having them on opposite sides generally allows he string to track across the handle on a snakey bow. The war bows that were found on the Mary Rose bow had single side nocks(tillering nocks in most cases)under the horn nocks(horn had already deteriorated). I've seen ELBs with single side nocks too and they are 1/2" or less in width.