Anecdotally, I'd comment that the skin on my husband's inner wrist is much more sensitive to fine touch (whisper-touch of fingers) than the his penis is. Certainly than the glans.
He certainly will entertain the fine touch thing for awhile, but will pretty much ask for the "macro approach" over the micro, before too long.
And fine touch does much more for me than it does for him. I never really thought much beyond that this probably was an "apples and oranges" kind of thing, and anyone could argue that. "Men are different." But with the information from the other sensitivity study (pub in BJU), I'd say it makes sense to suggest that it's not so much apples and oranges as a case of circumcision changing things for him.
I don't know if intact guys typically are LESS sensitive on their inner arms, or if it's a comparative thing. (But isn't there an erogenous zone there, anyway?)