Cpt RJ- I use -1 @ 80 miles and -2 @ 40 miles. 40 miles is the big decision point. And in tight situations the range cycles through 80, 40, 20, and 10 miles.
Nothing like having the cockpit lights as dim as possible trying to see if the horizon or stars are blocked by a cloud.
And the joy of timing turns, often on the 10 or 20 mile scale, and watching a buildup slide past your wing in the dark or a break in the overcast.
MAX gain is your friend at altitude.
