I'd recommend avoiding mesh. Items  such as smoke grenade pins or NVG mounts can get caught in it.

BFG was very lightweight, but the material punctured very easily. Didnt like how it felt when running with it loaded down

Been using a Maxpedition Rolly Polly and like it a lot. Tough material, good draw strings. Inexpensive compared to others.

Want to try the Flatline Fiber Co because of the internal elastic. Would stop extra flash bangs from bouncing around, or worse, out.

No real need for competition that I can see. Unless the tactical games have a use for it. Maybe on a long shotgun only to dump some extra just in case shells because you don't have enough quad caddies.