I recently played in a 160 person 2-day 2-links courses event played on one longer course with only 3 par-3’s and the other course a shorter one with 5 par-3’s. The ground conditions, weather etc was the same both days as both courses are the same venue.
Guess what? The overall scoring for both courses over both days showed that the harder course to score on was the shorter course with the 5 par-3’s. And the time to play 18-holes was less on the shorter course too.
Atb
No disputing that one would play a course with more par 3's in less time.
But that doesn't mean one is not waiting more.
As Kyle points out, over capacity can be a cause of backups-but the even at the most generously spaced courses, early par 3's cause backups, which can be eventually eliminated by "actching up" on a series of par 5's or par 4's, but a steady diet of more par 3's creates more of what I call "in range" waiting where a player COULD hit the green, but won't and the groups behind wil inevitably end up waiting as the player plays ping-pong around the green.
the same thing happens in junior tournaments when courses are dramatically shortened- a longer hitter has to wait as an equal amount of kids are spread out over a smaller area.
Shorter courses courses can be played faster, and therefore deserve the luxury of more spaced out tee times, so that one can actually enjoy the shorter round, rather than waiting more. during their "fast" round.
I'm all for 5 or 6 par 3's but where they are placed and tee time management has a lot to do with how much waiting one does.
a first hole par 3 is an excellent way to develop rest of the day spacing.