This is how I drive for typical soft sand beach driving.
- Drop tire pressure to 20ish psi (I think I do 22/24)
- Put Vehicle in SAND mode
- Raise to offroad height
- Don't stop in soft sand or when pointed uphill (unless you can back down)
- Keep momentum up in soft areas where other vehicles are getting stuck.
I used to always turn the DSC setting off. This seemed to help me when I was starting out and I wanted to rev up a little bit to get on top of the sand. The DSC will stop you from that little spin which sometimes helps you (i'm not talking about the extended spin that buries you). These days I don't worry about it. It was one additional button to press and I have not had any problems now that I don't turn it off, but I keep it in mind if needed.
I do not use Low range as that limits the driving speed.
I do not use Sport setting in one of the off road modes (it isn't allowed anyway). When I am off the beach I always drive in Sport mode as I think the vehicle is much snappier.
Of all those tips, though, the most important one is air pressure. I think you could drive right on the beach w/ zero changes to anything else as long as you dropped the tire pressure. LR advices against this as they think the SAND mode should take care of things...but if you have an HSE you're driving a 5000 lb. vehicle with low profile, shallow tread tires. You need to drop the pressure.
Hope this helps, let us know if you have any other questions!