The most common CAUSE of blowouts is under inflated tires.
If you're looking for someone to agree with you to run your rig in an unsafe condition, you're not going to get it here, at least not from me. While you may never four corner your rig, (I know it's expensive) at least weigh it on a CAT scale and know your axle weights.
I'm wondering though, you say, "The sticker inside says to run them at 83 psi." What sticker are your referring to? I've never seen a sticker that says to run tire pressure at an oddball number.
The lower PSI on your tires will certainly soften the ride. Why not run them all at 20PSI..:h
Good luck to you, if you choose to run your tires as you've described, please make sure your insurance is up to date....just sayin....Dennis