I don't normally send four cards, but for whatever reason I had them laying around so I sent them. I usually try to send one or two cards in a request, sometimes three, especially if I need all three for a set I'm working on.
Speaking of which, I've been watching eBay for a nice big lot of 1972 Topps to work on. There are a few sets listed, I'm just trying to make sure the prices are decent, so I'm looking around a little more.
