John -
I'm sure even the USGA would agree now, in hindsight, that the 7th should have been watered prior to the first group.
But that's easy to say now. Should they have let it go completely, after seeing the problem with two groups way out of contention?
Conditions change throughout the day on every hole.
Every hole. Such is the nature of competition at an outdoor sporting event.
Anyone who has worked at a US Open will tell you that syringing is a common practice. As Don Mahaffey indicated on another thread, the primary purpose isn't even to alter the playing field so much as to alter the microclimate in order to keep the grass alive.
When you take things to the limit, you will have the odd problem. As Adam stated before, had the USGA not acted, the outcry would have been much greater, and justifiably so.
20/20 hindsight is always clearer. I just hope the USGA does not react too much to the outcry and swing things in the othe direction.
How many years of boring hack out golf did we have to suffer through before the last few years of firm and fast?
Please temper your criticism with that in mind!