I would say your tire pressures are spot on. Our race tires are rated at 50 psi max. It is totally trade secret what each racer runs. Most of them if you ask they will lie. We run a goo in the tire that is supposed to prevent leaks. Most racers will deny that they use the goo. Keeping your tires inflated is a big deal and pressure even bigger. Guys used to leave flats all over the course. They now penalize you if you do and each tire must be labeled as yours. That and leaving your catheter for someone to pick up are big no, no’s.
I would never go out alone. The extreme trails are usually scouted for seasonal damage. Each Jeep club has a rotating scout that is supposed to pre-run the more difficult trails before the entire club goes out. Most of the trails we run have been run so many times they are committed to memory. Many though are seasonal with some opening in late July. Trails like the Fordyce have a creek crossing at the start that depending on the year may be un-runnable because of high water. Rubicon used to have a large boulder gate keeper that was a challenge right off the start but somewhere along the line dynamite took care of that.
Each terrain has it’s own challenge, many times a club member will literally walk ahead of the group the entire trail. Most trails are marked for difficulty. Experienced spotters are of great value and everyone is trained in safe winch technique. How to properly set up jacks and how to inflate a popped tire on the trail. My first time running the Rubicon a buddy popped a bead and a little starting fluid sprayed in the tire and a match attached to a stick, BOOM! Bead back in place. Tickled the heck out of me at the time.
Mostly runs are just a huge social event, we have things like the Stag run where the guys just go out and break things. Or the Doe run, no men allowed.
Whatever your skill level the beauty of the sport is that there is always someone there to help. At our race in Pahrump last year our main rival Billy Bunch was pitting right next to us. We were low on brake fluid. Here comes a member of his team with a bottle of brake fluid.
It’s how we roll.