Once I got longer, higher loft irons and learned how to play elevations, BPB (and Congress for that matter) became much easier.
Oakmont is long, but one of the easiest courses tee to green. The nightmare begins once you get to the green. My only recommendation when playing Oakmont is shoot for pins.
"Let's see... 10' putt, 12" above the hole, side of a cliff, tourney greens. I need to turn around and hit this 2' backwards or it will run past the hole."
There are greens on Oakmont that defy physics ô¿ô