Welcome Aboard BigBirdsnest,
Experience is your best bet. We all have gotten stuck and that is how we learn. Check with the manufacturer as to what your tires min is. As the pressure on tires can vary quite a bit from manufacture to manufacture. I had Michelin's on in 2000 on my Expedition and the pressures were 3 times as high as the tires I have on now Goodyears. Before that I had a Bronco and the pressure normally was 35psi. I run 15 psi now as a min and have not been stuck for quite a while.
The idea is to run slow over the sand that is one reason for the 10 mph out on IBSP. Yes there are others but the slower you go the better. If you are worried about running on the deep ruts it is simple stick to the beach between the normal deep running tracks to the ones closer to the water. You should be okay and if you run into trouble just look for a vehicle that has a NJ Beach Buggie plate on it and ask for help. We are always there to add assistance to some one that is new to the sand.
Happy Catching
Paul