Sounds like a Queen song.....
Richard Mandell's (excellent) interview mentioned this concept while talking about Ross' bunkering strategy. It reminded me of my recent games at Deal and The Old Course, each of which seemed to be set up with precisely this philosophy. What effectively happens with flat bottomed bunkers is that a shot which enters them at any sort of pace will roll all the way to the front. Now, if the fronts of these bunkers are revetted to a nearly vertical slope (as those at Deal and TOC are), progress forward is impossible (as is escape backwards), and even sideways escape can be very difficult. I saw my friend Hoffman have 6-7 tries, from all angles of the compass) at one of the Deal bunkers before admitting defeat. This was mildy amusing to me until I managed (a week or two later) to pull my 3-wood tee shot at #16 TOC into the Principle's Nose...............
Firstly (partly because I knew I was a superior bunker player to Hoffman), I tried the direct route. Alas, a 60 degree wedge layed off so as to be nearly horizontal still found it's way eventualy back to my feet. So, I tried sidieways. But if your ball is up against the wall of the bunker and the bunker wall is a bit convex, how do you actually get the ball out, or even move it to a bit of sand that is not up against turf? The answer is, with great difficulty.
After several blows, I did find myself somewhere near the middle of the bunker and felt I could play forward and did, but a little heavy.........and, now I know why Tommy Naccarato has been telling me to rad all these dusty old books! There are two little friggin' bunkers right behind the major one. Hence the name of the complex.
Therefore, what?
1. Some of the bunkers at TOC are multiple penalty hazards. Expect much more Tigerish strategies (i.e. avoid the bunker sat all costs) at this year's Open from the players. You might even see some guys taking an unplayable from a fairway bunker and walking back to the tee to reload.
2. I'm not sure if I like flat bottomed, vertical front wall bunkers. IMO, at the very least there should be some sort of camber near the wall so that balls do not roll up against the turf. If a bunker is so penal that you just cannot get out of it in less than two shots, why just not make it a pond? Yes, I know that would be difficult on sandy soils......