What does everybody use for molded capacitor replacement?

[CJVx]

As of late, I’ve been using high voltage SMT NP0 ceramic capacitors that I install on adapter boards I’ve designed to occupy the space of a mica or molded capacitor. NP0 caps have practically no drift over temperature range and are extremely inexpensive, although it’s going to take a while to absorb the cost of getting my adapter boards produced.