Matt:
It would appear that you and I are fairly close in our appreciation of Plainfield. Maybe we should wish that it would fall out of the top 100 so people wouldn't look to go there and we would have more opportunity for ourselves to play there!!
PBGL in its firm and fast state proved how difficult it was during the Open that Kite won. But if the greens at Plainfield are firm and fast, then it becomes a real bear as you know.
I have been lucky enough to play there mostly in tournaments. i.e., NJSGA Open, Donald Ross Invitational, etc., when they had the greens running really fast. That is a true challenge, especially if you get above the pin. The course shortens up, but putting and chipping become essential. Conversely when it rains and it gets wet, the carry factor is crucial. Without roll #s 2, 7, 13, & even 17 become long irons. And foregt hitting the par 5's in 2.
Just an overall wonderful, enjoyable experience every time.
BF