Some guys on Team Chevelle posted pics of that event and I saw a Green Olds and thought it was yours !!
Congrats on having fun with everything...
On hills where the trans goes into first, even second, I'm assuming you already had your 4 ways on. I just lift the throttle enough to reduce the rpm to 3,500 and let the engine and trans rest a little. You're only going to lose another 5 mph and you're already crawling, so save the truck. The people on those roads are well accustomed to us pulling trailers and will figure out how to get around. And YES, don't ya love needing to brake most of the way down for those crazy turns after beating the crap out of the truck to get up ??