The second 9 at Olympic is extremely easy. Shot a 59 there earlier this week (albiet from the Master tees).
If you have the proper equipment, those holes can be easily had. A lot of short iron approaches
Now Merion... just played the Michelin Challenge today and had to play on the champ greens... lets just say that is like putting on ICE. Not only that, they were SOFT. Any time I played full spin on a wedge the ball spun back about 25 feet. Anything under par is a good score at Merion, the only course I can say that about