I understand, Dan ... thanks to your previous explanations about stitching the material together with #69 and then having your way with top stitching.
I'm presently using leather needles; 140/22 ... would these be good with #69 as well as with #138 or #207?
What's with #415?? Is that rediculously fat or do you think it might be what I'm looking for? I guess I may as well buy a spool and learn for myself, eh?
PS -- What do you mean by winding your own bobbins instead of using pre-wound ... what's the difference? Aren't you always winding your own bobbins with the bobbin winder?