Pardon my ignorance, but shouldn't a right side D ring keep the light canister from sliding forward? And could you explain how a properly adjusted crotch strap could pull open the buckle?
Thanks again.
There is no right side d-ring on the waist strap.
If the buckle was centered in the front it would be very easy for the crotch strap loop to slip under the buckles release lever. Any foreward pressure on the crotch strap would pop open the buckle.