Philip,
Montclair is a hybrid, a bit of a mix of several categories.
It sits on an unusual piece of property, a rounded hillside.
My father caddied at Montclair in the 1920's and I caddied and played there in the 1950's, before most of the alterations forced upon the course by the introduction of tennis courts, a result of the temporary increase in popularity of tennis in the 1970's.
One of the considerations for me classifying a course/hole as sporty is one where length isn't a primary requirement.
The old 7th on the first nine might be a perfect example.
Ditto #'s 5, 6 and 7 on the fourth nine.
# 4 on the third nine and numbers 1, 2, 4, 7, 8 and 9 on the second nine.
The old 4th on the first nine, 2nd on the second nine, 5th on the third nine and 2nd, 3rd and 4th on the fourth nine would be of a championship nature where distance was a critical factor.
There are many other holes which serve as more benign "member" holes.
I basically learned to play golf on Montclair as it was the home course for my high school golf team, so the course remains fairly familiar to me.