Peter,
I'm 0/2 hitting the bunker, but both times I aimed right at the flag. I figure that I'm not playing TOC for some score that if its good enough I'm going to laminate the scorecard and put it on my wall. I'm playing it to enjoy and challenge myself, so screw this "caution" idea! Last time I hit a 7 iron right over the bunker at a back left pin position from the wispy rough on the left. Hit it perfectly, just couldn't spin it enough and it trickled off the back onto the road, ending up only 20 ft from the hole. But I chipped a 4i off the road a foot away for an easy par.
Now that I've got to play off the road, I'm even more determined to challenge that bunker each and every time I play because that's part of the fun of the hole. Yeah, "infinite caution" might result in a lower score over the long run on 17, to say nothing of over a given round. I guess it depends on why one is there. I have decided next time I'm going to listen to Nicklaus and not play right of Principal's Nose on #16, no matter how tempting it may look from the tee
I'd hate to have to tee off #1 tee playing to #17 green. I think the bunker would be FAR worse playing from that side, the angles just don't work in the player's favor at all. In the normal direction if you aim at the hole over the bunker you are aiming away from the wall and have more room the further left you go, and less on the right where you don't need as much. For the reverse layout, off the tee you either do like you say and aim it over at the road and hope you don't pull it an inch, or play it safe down the middle and then have a unimaginably difficult task where missing it left is bad, missing it right is worse, and missing it long left is worst of all. Sounds like fun....when do they play that reversed course again?
Thinking about my normal vs. reverse thoughts on the angles, I realized I'm thinking from the perspective of a righty. I gotta think the 17th (normal direction) is tougher for a lefty than a righty, just mentally mirror-reversing that hole's layout scares me!