Hi Donald - I am assuming you are talking about weaving? I am not a weaver but we do have a few members that weave. Hopefully they will be able to discuss this issue with you.
I only have a rigid heddle, so I'm afraid these terms are way beyond my understanding. I hope you find someone with more expertise. Please let us know how you get on and don't forget to post some photos.
Please let us know how you get on and don't forget to post some photos. 