Joe,
You asked some great questions. Before I answer them, I want you to know that I was not questioning your reactionary observation. I think that method of inquiry is very important to determining an informed decision and would result in a less than proper decision making process without it. I know that your one time through (and I don't even know if you played it) is not meant to be taken as an authoritative opinion after careful analysis. Only Mike Malone likes to use such a cursory analysis if it fits his narrow predetermined mindset
First of all, the hole was not meant to be a three shotter. Of course, given the spectrum of playing abilities in a golf club, it would be for a representative segment of the playing population. However, Flynn had 3 short par 5s on the course and an Old Guard member told me that one of the three on any given day (of 7,17 and 18) would play as a par 4. At 485 from the original back tee with the first 60% of the hole downhill, this was not a dictated three shots to the green by any means, even in 1926 with the firmness of the fairways. Remember, this is a course where Flynn designed a 260 yard uphill par 3! So any premise by Malone that this was meant to be a three shotter is false.
Given the routing progression along with the difficulty and par distribution. 7 is best as a risk/reward par 5 given its place between the difficult 6th and the very difficult 8-10 holes. 17 is a sharp dogleg left with a gradual uphill to a severely sloped green. The dogleg nature makes the hole play a bit harder than the yardage indicates. The new back tee, although it should have been built on grade and slightly left with the intervening trees taken down (for improved agronomics on 16 green and 17 tees), would have made the hole play longer and create more of a shot shaping demand for a chance to go at the green in two shots. 18 as the finishing hole plays best today given physical abilities and technological impacts is best as a par 4 for low handicappers playing in tournaments. The green is very large and accepts long shots. The back tee that was put in takes all strategy and interest away. Hit driver, 7 iron around the corner and 7 iron onto the green. BORING in its unity of play.
I don't advocate a universal position of leaving things alone at all. It is a case by case study. Only Malone simplifies things to its extreme and uses purity as a defense. And I do not advocate leaving things alone. I advocate changing par from 5 to 4. What is par anyway? The likely score of a scratch golfer, right? Well scratch golfers are closer to 4 than to 5. Given its place in the routing as a finishing hole, I think it better to round down rather than up. I'd like to see the Am qualifying scoring but I am certain that scratch players are closer to a 4 average than 5. The results from qualifying might be skewed because the greens were in horrendous condition and putting was probably not indicative of reliable performance.
I do agree that holes that were intended to be three shotters should try to be preserved where there is room to move tees back and the move makes sense. Given that the hole was not meant to be a three shotter for low handicappers, the downhill nature of the tee shot, the dogleg with a secondary tree line and the uphill nature of the approach to the green, the 18th at RGGC is not one of them.
But if it works within the framework of the hole and grounds for golf, then yes, I would like to keep true three shott par 5s around. I think the need for having at least one hole on a championship course a real three-shotter where you have to "ring the bell" with three successive shots is very important. Good thing RGGC has the wonderful 9th that fits that bill very well indeed. I'd add 25 more yards to that hole by the way. Move the storm shelter and move the tee back. That is a better thought out addition of length.
Hope to see you out this way again on your next visit.