bumpstops/how to limit suspension drop?

[Slammed67]

What are you guys using to limit how far your air bag suspenion drops (to keep it off the ground when it's slammed)? I've got some rubber bumpers (bumpstops) on mine now, but they aren't designed to hold up the full weight of the front end of the truck. I need something "stiffer" that won't compress so much when the front is aired out. I know there are many "air baggers" that aren't concerned with such issues (or safety for that matter) but I am.