I bought a couple of used molds from SMac, one of which is a two cavity RCBS 38-158RN, the classic round nose bullet for .38 Special. The mold I got is apparently an older model, it has a crimp groove where the picture of the current version shows no crimp groove. I'm tickled pink, the mold is in excellent shape and I really was hoping to get one with a crimp groove. But I had to go to the Midway site to find the picture because of what I noted about the RCBS site.
(I want to note that the purchase from SMac was entirely satisfactory, the mold was as described and it was packed properly and shipped promptly.)
I have several RCBS molds, all of them are fine, my only oft-voiced complaint is that their pistol types don't come in 4 cavity and casting with two 2 cavity molds is somehow dissatisfying.
Maybe they are just getting out of retail sales and/or slimming down their product line.