I don't know Mr Jewett but I am familiar with GMU 20A as I live on the eastern edge and stay involved in F&G issues. 20A has a good moose population and the Area Biologist is Don Young in ADFG Fairbanks office. Wheeled and tracked vehicles have made serious entry into 20A from Parks and Richardson Highway. Boats run up the rivers from the North [Fairbanks] and there is quite a lot of supercub traffic as it's within fuel range of Delta and Fairbanks. I guess what I'm telling you is there are quite a few hunters in 20A.
My guess is that your guide may be in the Wood River area.
I hunted the Mt Hayes area for many years and it has way too many hunters for me any more.
Also keep in mind that moose hunting is very weather dependent. If it's warm like last year, the bulls just don't move nor respond to calling. Some of my friend guides with good harvest records blanked out. It happens.
On 9/11 of 1992 [I think] a storm came in dropped two feet of wind driven snow on us at Hayes Glacier and the temperature went to -20F. Rivers froze and we all waited days for weather to subside so our Cub could get in on skis. Many hunters left gear and boats in the bush until the next summer.