The way I have described it in the past is if you put the BG out of the box at one end of a spectrum and the full MG at the other end, the DVAL boards are maybe 35% of the way from the BG end toward the MG and the OZ boards are maybe 70%.
I saw Dom's post about the Marino boards and he certainly is the expert on those. BTW what is the difference between your DVAL boars and the Marino or OZ boards?