I always recommend using a gear bag that is NOT scuba-specific....why advertise you have expensive gear in your checked luggage?
I have also had two scuba gear bags break the first or second time I took them on a trip, so now the ONLY bag I will use is a rolling duffel I bought from LL Bean. Reasonably lightweight but rugged, and the best part is if it every breaks a wheel, or the zipper breaks, whatever, they will replace it for free.
Can’t beat that....