I called in looking for a pair of midship cleats (never originally installed on my 34) and got a return call from Robin after 3-4 days.
He promised to let me know if they still stocked them and to get me a measurement for where the factory installs them. He also gave me a source if I wanted to order them direct. I told him that I would prefer to get them through PSC (if they're going to the trouble to look them up, they should make a few dollars).
I have not heard back for several weeks now, and will call back.
Last year, I had to call in about 3 times to get an answer, but when I ordered and paid for a fuel tank, they made it and shipped it very promptly. My yard will install it this winter.
I don't know how this experience compares to those of others on the list, but I'll post if anything unusual happens.