I don't get it, so the 150A and the 80A has the same MOSFETs!!! Do you have pictures of the MOSFET board of the 150A?
No, the 80A has 18 FETs, and they are different part numbers too. This is what leads me to believe there is an extra 12 FETs under the heatsink that is glued down in the 150A...