TEPaul:
I don't buy your concept of a "true three shotter" being something you need three of your best shots, no misses allowed, just to reach the green. I've never seen such a hole. Sure, its theoretically possible, but like you point out, you are talking 700+ yards, more like 800 yards for the likes of Tiger, Phil, Sergio, etc.
To me a true three shotter is one that will require a full shot for the third shot. That's a lot more achieveable, and can even be done with holes that might allow a half wedge for your third in theory if you busted two of your absolute best, but in practice wouldn't because there'd be too little gain trying to do so.
Par 5s may have existed on equal footing with 3s and 4s 100 years ago, but that day is long past. The best a par 5 can hope for is to emulate a good shortish par 4 where you have a choice off the tee of busting driver in exchange for a less than full wedge to the green or laying up with a fairway wood/long iron off the tee and leaving a longer full iron.
A course here in Iowa called Hunter's Ridge has a good example of this type of par 5. 617 yards, plays directly into the prevailing wind off the tee and into a quartering right to left wind the rest of the way. The tee shot requires a 225 yard carry over other teeboxes, junk and a creek to reach the fairway. Right is dead. Left is a creek, though there's a bit of room over there, more the further you carry it. A true test. Then you lay up, pond to the left from 180 all the way to the back of the green, right is lined with several bunkers from 80-150 yards. I usually lay back to 150 to take the pressure off my second, but I know people who play it with a fairway wood to try leave a shorter third.
Dave Schmidt:
Ugh, I hate par 5s that may require laying up off the tee to enforce their shot values. Brad Swanson and I played together the Monday before the Wild Horse thing and both hated one par 5 that required us to lay up off the tee, the fairway went out to about 310 as you describe, with the fast fairways we'd both easily be through it with a well hit drive (he hit his 3W about 3 yards short of the end of the fairway, how's that for control
) I have no problem with using narrower fairways, bunkers, water or terrain to ENCOURAGE players to lay up off the tee, but having a hole that's well over 500 yards that requires laying up from the tee is just plain old bad design, IMHO.