Just want to run this by some of you, at the present time when I climb a (Hill or Mountain) I let the Allison do the changing or down shift as needed, if it don't down shift at 1400 RPM I will down sh...
That is one of the finest transmissions made (Check that.. It is not "One of the" even FORD says it is the best) and it is smarter than most drivers.. Myself included.
So yes.. letting it do it's thing is a good idea.
Read and undrstand the Grade Brake feature if you have it. Also fantastic.