I spoke with Jack about these. He did not commit to any difference in tone. Also, I asked why the maple neck paired with these.If you are going FB it is an attemp to fatten the tone where as maple necks are said to brighten and make "snappy" the tone.
I have a WL P24 trem that has a fatter body than my other custom 24s. It is not noticeably heavier, I do not have a scale. It does not have a fatter tone.
As said earlier in the thread, its probably more about density tied to weight than thickness. My SCT is the same thickness as the P24, it is heavier and might have a slightly heavier tone???.
I had dreamed of creating a PS before and it had a FB, I am not so sure now. I think you need to go SC thickness to get there.
Also, FOR ME, I feel it is less and less about the guitar and MORE about the amp. I have gone down to 4 Core PRS and could cut more if needed (but won't). I have shifted my funds to amps - Friedman.