I would think, also, given the aforementioned sash v. mini fly plaid distinctions (apart from size) in the two posts above, that another, more distinguishing characteristic is simply the way they are worn.

A sash goes across, the chest, no? Whilst a mini fly plaid simply hangs off the shoulder??

Given the same piece of material (in this case 12x54), perhaps how it is worn is more important in determining what it is and what it is called?? Additionally, perhaps a sash would also be constructed differently, if it had accoutrements intended to clasp or attach the two ends at a point near the waist, while the mini fly plaid should lack such fastenings...

Anyway, the only sashes I have are related to the BSA and OA. I have material to make a fly plaid and/or mini fly plaid, but have not yet done so....

Isn't it interesting how long this thread has lasted????