I'm not sure I get this idea of deepening all of the bunkers at Oakmont (wasn't it tough enough before?) any more than I understood the same process at Merion.
I'm a guy who is all for fearsome bunkers that play like hazards, but shouldn't the playability and fear factor of each bunker be somthing that was decided by the original designer of each?
Yes, I'm sure Fownes wanted each to play unevenly, hence, the furrowed rakes, but I'm not sure that presents the same shot values and challenge as just deepening them. I think in the spirit of historical integrity, I'd rather have seen them just comply with Fownes original intent and furrowed them, similar to Nicklaus at the memorial this year. It seems to me that once you dig up the whole thing and start over, essentially destroying the original surrounds, you are then tinkering with something more than cosmetic surgery but instead undertaking invasive actions that forever alter what has existed for many decades.
At Merion, Hugh Wilson evidently wrote in some detail about how he'd like his bunkers to play, but in fairness to the club, I believe Wayne and Tom unearthed that information sometime after the bunker project was already completed.