It's the passengers who were "all over the board" that's a simple answer. they didn't really have a reason to recall Cooper, so you will end up with altered descriptions. I believe the FBI based most of it on the Stews. they were with him for long periods of time. other crimes 377, and others refer to is random crimes that are quick, and people didn't get a very good look at the person. this gives a bad description. i'm not saying they got everything right, nobody knows this until he is ID.d. you have to have guidelines though.
5'6 - 6' 3? some wants to go with 5' 8" so you must lower that even more?
140-180 Lbs? He could of had 5 pairs of clothing?
Tanned, olive, bronze, dark, pale complexion? add as needed?
25-65 years Old?
Hair- thin, Thick, bald, parted on left, straight back, parted on the right
Sideburns- below ears- at the center of ears, faint sideburns
Each time you change something to fit a suspect, you must continue to go lower. if you are allowed to do that, then you must make it lower to fit others.
Where does it end as Carr stated?