No one should say that a dual mod on anything is impossible but you have to weigh the benefits versus the risks and what you will potentially lose.
IF you have both versions of the FE, you’re covered system-wise. The only reason I could think you’d want to scavenge a PCB board is to save space and not lug 2 joysticks between tournaments if you’re flying by plane.
To my knowledge, no one’s been able to dual-mod the FE and keep all the functions – LED, home buttons, etc., etc. To my way of thinking, risking an excellent limited edition joystick UNLESS you find a good modder/electrician who knows what he’s doing is not worth it…
Gummo’s honest and will tell you what’s doable and reasonable.
The FE itself is a more limited edition production joystick like the Hori HRAP VLX joysticks were. The difference is that the VLX joysticks used the same basic PCB as the regular HRAP’s so it wasn’t that difficult to do mods or create add-on PCB’s for the (360 version of) VLX that gave it multi-console capabilities. Nothing from the original 360 VLX joystick or another joystick was sacrificed with that add-on PCB Toodles created for the 360 VLX. (The add-on PCB itself was a limited edition item and was available for maybe the better part of a year before Toodles discontinued it… There weren’t that many VLX joysticks made.)