Firestone Ride-Rite air helper springs longevity?

I do a fare amount of off pavement in my rig. Was doing fine 30,000 Hiway & Forest Service roads. Took a trip to run some of the Colorado passes that are old mining roads. 1st day Ophir Pass rated 2/10 was fine. 2nd day Imogene Pass 3/10 I blew a bag and was in danger of other damage due to the dead bag. Made it out to Montrose and had a 4x4 shop strip out the bags and install Roadmaster Active Suspension. Continued on with other passes rated 3/10 and had no further problems.