Here is ours, 2019 Heartland Mallard, 2003 Avalanche.
Not a lot of hills, not like out west. Black mountain in NC is the steepest i've been up. 7% grade for 6 or 7 miles. But it is twisty.The Equal-i-zer is a very good hitch, I've never had one, but the people I talk to are pleased with them. You probably pull in hills? My philosophy with pulling is I'm never in a hurry and don't go fast. Slow and steady wins the race and is much safer getting to the campground