If he's done it for a while, he probably has a mental coefficient that works for him.
Basically just walk thru and tell you what's what in 3 mins.
I could do that, I knew that most homes on my area were 24-26ft wide, so that was about a 17ft rake as long as it was under 6/12.
All i had to do then was stand in the yard and count tabs for the total linear length. Dormers, cut up, meh. Do it long enough and you can just 'know'
He just came out there to make sure you didn't have anything wierd. And also to determine if you were an ass hole.
Lol
I turned ass holes and anal retentive people down. I ain't got time for those "oh my God you dropped some nails in my azalea bushes"
