I feel like the shape and the steepness are not often combined and it is more just a luck of the draw, or as stated, which board press number is the one you have had.
From getting multiple boards of the same shape / graphic / run, I can definitely say that there are differences in the concave that do go beyond just the press number as well, eg one eagle with a I on it was more mellow than anything else I have had before, even compared to all the IV boards that I currently have, which also had some slightly different concaves between all of them.
That said, all 8.25 regular boards have felt steeper to me, even the IV pressed 8.25 regular boards have always felt steeper than the other 8.38 I pressed or different sizes all with IV, so that alone is a curious thing. Given I have had a lot come through my hands for the shop and yes OCD crazy or whatever, I have had a stand on every single board, just to see how it feels.
The "Dreamer shape" is just the standard 8.38 x 32.25 with 14.5 wb, regardless of what anyone else might say. I asked from the DLXSF.COM site and that was the reply. For me that is pretty much perfect for a slightly more nimble version than other BBS 8.5 boards I ride.
All of the 8.25, 8.38 and 8.5 Full and Full SE boards I have had are quite different in shape to the normal boards, but as I am still yet to see a Manderson deck in person, I cannot really compare them, but I would almost say that the 8.25 Full SE which is 8.25 x 32 with 14.25 wb, is the same everything except width as the 8.38 Manderson, big blunt kicks and a very full shape overall.
I had skated a few of the 8.38 Full and Full SE boards and liked them both, but when I couldn't get easy access to more, I went with the standard 8.38 as my main board.
It is interesting to hear how others have felt about different DLX boards as well, given in the grand scheme of things I have only had access to what would amount to a very small number overall, even if I may have had a few hundred come through my hands in the last year before the shop closed.