+1 and 2 on the Knotty mods. (because i have two of them) Pulls loose material in under control around the head, and provides custom footbox.
Undoing or putting one into action is as simple as adjusting a cord lock on shock cord. Remarkable results for such a little mod.
Thank You Knotty for coming up with it, and thank you to BIAS for picking up on a good thing, respecting it's origin, and incorporating it as part of their great offerings.