On a downhill like that or even Bartlet, if you tap yer breaks once at the top they stay actuated(sp) all the way to the bottom cuz you never give the truck gas allowing the toungue of the trailor to seperate deactivating the breaks. I like electric breaks. You can PIN them for the decent down,(dangorous) or, I tend to, at bartlet, coast till I rollin bout 55-60, the break down to 20-30, then gas it a little to slide the tounge apart deactivating the breaks, then coast again not hitting the breaks, ect. Maybe I'm just all F***d up though???