Yes, Chris! Due to the warped phenolic PCB's several, or even more, if not any, individual contacts get unreliable. Someone on YT pretends he has replaced the stock PCB's in a Concorde by designs of his own, dramatically reducing the PCB counts along with this. This might be possible for someone who is much, much more wiser and experienced than me. For me it is way out of reach.
Best regards!
Uwe Menrath