It seems that none of my Centris and Quadra era machines are stable anymore unless they've been recapped. In the last few years I've recapped several motherboards, but even they started showing issues, so now I'll be recapping or replacing power supplies, too.
After recapping my 1U Amiga 1200 (which is now running 100% perfectly without panics or core dumps for more than a month), I was inspired so I decided to do a Quadra 605. Since I have more motherboards than cases (the plastic is SO brittle!), and since I don't have the capacitors I need for the power supplies, I decided to bu