You could build more 240 yd par 3's. And you'd get more long iron play. But how many 240 yd par 3's do you want on a 7000 yd course?
Bob, I made this point on your Perfect Swing thread, but let me add to it. We can build 6700 yard courses that greatly challenge the pros -- that force them to hit lots of mid and long iron approaches -- by building more par 3s.
For PGA tour events, the course can have six par 3s. I think the longest should be in the 280 to 300 range. Today's pro's would then have to play driver/3 wood into some par 3s -- just like they often did 70-80 years ago.
The course should also include some short par 3s. But with 4 in the 200 to 280 range, the top players in the world already must hit a fair number of long-iron shots.
The course should have 4 par 5s. One could be a true three-shot hole. The others could give the players the chance to get home in two. So now we have three more mid to long iron approaches, plus a long-iron second on the 3-shot hole.
At least one of the par 4s could require a long-iron approach. Bringing the total number of mid-long iron shots to eight or nine.
This course could measure in at around 6700 yards, par 70. The pro's could find it real tough: the par 3s would probably play well over par. Another set of tees would make it playable for the average golfer. We could even turn some of the ultra-long par 3s into par 4s for the shorter hitter. One way to do that would be to build a tee behind the pro tees. i.e. the pros play a 260 yard par 3, but bogey plays a 275 yard par 4.
The long-ball hitting pro still has an advantage on this course. But nowhere near as much as on the 7500 yard monster courses they sometimes play today. Those par 3s are the key. They play long for pros, but short for average golfers. By including more, we can keep the courses shorter, while still posing a challenge to great players and average.