If not already here...welcome to the world of Star Wars costuming.
As this thread can show you, it's all part of figuring out 'what's up' and then 'what's best' for the costume as a whole. I'm only showing what's in the current Pathfinder online CRL. The GML usually looks there first for approval references, then the DL and/or XO weigh in representing the detachment.
I personally have mine attached with double-sided tape. Since this discussion began, I've had it both ways. Now, it's the same as the CRL image. Most of the scouts I've met have it that way too.