For everyone else, here to a picture to better explain what I said. A filco plate has downward bends on the front and back of the plate, the phantom plate is flat throughout the whole plate. In the picture, bottom black plate is from a Filco, and top plate is from my custom TKL plate, which is similar to a phantom plate.
Unfortunately the case only have ledges that support the plate on the front and back. Not on the side. I am afraid that your plate won't fit.
This pretty much confirmed it: won't be compatible with phantom PCB/plate combo.
jdcarpe, if you bought this for phantom only, then return it lol. My initial guess was that it might still work with phantom because the two shorter sides can hold it up, however just bends too easily. But laffindude said the case only holds up the plate by the front and back that requires the bend, which will make it flat out not work with phantom.
However, good news is that this aluminum case will work with all Filco TKL, CM quickfire, and ducky TKL since they all use the same plates with the bend. Dimensions are all the same.
How does your plate work in a regular Filco case? Doesn't that require the bent edges to sit on the bottom case too?
The custom plate is supported at the two short side edges and 4 standoffs, along with 1 large standoff near the top center for the PCB. Enough to be pretty sturdy, so it doesn't require the top and bottom bends.