Been on 15 Bear hunts-killed 2 P&Y 1- 18 12/16" & 1 even 19"-missed 2 P&Y & passed on 7 Bears within 15 yds.
If his head looks small for his body & when a bear waddles from side to side he is usually P&Y. Broad-flat head is usually a Boar & sows or yourger bears usually have a more pointed-narrow head. Sows can make the book but it is usually the boars with the flat head.
Smaller bears have a faster walk & as I said, the big ones waddle, roll from side to side & they TAKE THEIR TIME... I also feel that every Bear I had come into my bait "KNEW" I was there. Scent can kill a active bait-don't mess with your bait-thats what the guide is getting paid for & the bears are used to his scent. good luck.
I have my 19" Bear fully mounted & my 18 12/16" is a 6'4" rug-nose to tail. It is a thrill-be prepared for "Black Flies"-Muskol repellent & don't touch your bow if its on your hands-takes paint right off but does a job on the black flies-they are killers..

always thankful