Yes, I mean shifting to first or second to keep speed down and keep off the brakes. Something I always use when driving the Duffy Lake Road.
We drive that about every one to two years. Don't let that shallow 10% at the end fool you, that is where the 6 switchbacks are!! First sign is hard to read...it is 13%. And those speed limits are km not mph, so multiply by .6 for conversion.
Downshifting lets me get down nice and slow in complete control and the tranny temps actually drop. I use the brakes only in pulses when the revs climb too high. Usually behind someone in a small vehicle whose brake lights are on the entire time with that wonderful smell of burning brake fluid.