I have a few other pictures, including RonB's "Tie-Rod Hill" where the deceptively simple looking trail has killed his old H2 many times. Will post in a few days.
But since there were only 2 of us, mostly we had lots of fun, going quickly from trail to trail.
All in all, this was an amazing "practice" session for me. I actually learned a new lesson while trying another, steeper, looser path up Powerline. I kept getting stuck near the top, despite trying every method I know. So, towards the 10th or 12th attempt, I was lazy to drop the gear to "R" when reversing, and just eased back down by releasing the brake. Well, suddenly a couple of warning ("ABS") lights lit up, and my engine DIED!! With it, power brake dissapeared and the steering locked!!

The truck continued sliding backwards -- the engine wouldn't re-start -- and my tail started to turn... image of my beautiful blinged-out H2 rolling over flashed before my eyes -- and I STOMPED on the brakes with both feet, while wrestling the wheel to correct my angle...
Btw, I did all of the above TWICE

just to make sure it wasn't a fluke, before calling it a day and left the park.
RonB was kind enough to explain later on:
Ron: "Were you in 4Lo?" Me: "Yes"
Ron: "Were you in 1st gear?" Me: "Yes"
Ron: "Were you in Rear Lock?" Me: "Yes"
Ron: "Well, the truck kept thinking you wanted to go forward, but you kept sliding back. So it decided TOO MUCH STRESS on the engine and what not, and killed it..."
Noobies, listen up -- lesson learned:
When reversing down a mountain, ALWAYS (as in EACH AND EVERY SINGLE TIME) put transmission in "R" ..Thanks RonB!
