Zag said it right, the conditions for Congressional are very tame.
Last year at Oakmont, the had the most difficult greens that WGT has seen at a speed that made them more difficult. It also seemed to me that we didn't have as much time to play it but that might not be correct.
The green speed at Congressional isn't even up to tournament speed, it is tournament light I guess. Plus we all have a full year of back tees, tournament greens, etc. that I think have hardened us to the long shots and fast greens. I know that having played the back tees for a while now, I'm not intimidated by the long shots into the greens at Congressional as I was when WGT moved the tees back on St Andrews and Kiawah. I think the qualifying is meant to soften us up for what is to come but for now very tame.