Thanks for your reply Link.
So yes.. due to their design it won't be possible to fix it proper by just cutting traces, sad.
(indeed relying on 1/2 the remaining carbon isn't optimal to say the least)
And I didn't think it'd be unfair to post this here. If anything it emphasizes how much better micro's solution is ^^;
I would love to see an indepth comparison of micro's UWRC versus 8Bitdo in terms of responsiveness/latency too, I have little doubts micro's design is superior as well in that regard.