the stamps mean nothing lately. I had 4 easy rider decks: 1 was a IV, 2 were II, and there was a III. The IV was steepest, then one of the II, then the III, and then the other II. I was at my local this weekend and bored and mentioned it to the dude there and they had 2 new DLX boxes. We took the 8.5 and 8.25 out and compared all 15 and sure enough, it made no sense with IV steeper than I, some just really being altogether almost different shapes and so forth.
In my mind I-IV is only relevant lately for the 4 boards in that exact press or maybe that day.
Yeah it has been a bit funny - wonder if someone is not putting the stamps on correctly or something?
I think the older boards, which I have more than anything else, seem to be a bit more accurate, but I have noticed some funny things, eg some stains all seem to be more mellow than others, especially pale aqua tops from a while back - every board I got from a few shapes were all way more mellow, which was very weird, but I am guessing they all went in the mellow mold presses.
Even some other boards, which almost feel like there is minimal to no concave, they are that flat, which are way more mellow than the easy rider concave, which I have got my hands on in recent years - the stamps don't matter at all, with whatever press / mold was used on those.
Thankful though I haven't come across anything in the shapes I like to ride that is too steep, but I have seen a few in the past that were way more than anything I would like to ride.
Most of the boards I have are from at least a year or more, often a few years old, besides the specific new shapes like the Anchor 9" or the Horse Pill 10" and similar boards.
Others like the regular 8.25 always seemed a little more curved up in the concave than the 8.38 or 8.75, but I would also think they would have some presses that were a little more mellow in width too, to account for the wider boards.
I have always liked that about BBS - they do seem to know and cover every option in different lengths, wheelbases, widths, etc.