Higher Voltage Filter Caps ?

[Colossal]

I am working on a parallel 6V6 SE and using Solens for the power supply. Film caps, besides lasting forever, have much lower ESR so some may not like them in say a vintage Marshall where that affects the feel and response of the amp. But for my own stuff, I much prefer them whenever possible. In recent years, the choice/availability of large value and high voltage film caps has gone up and cost has come down.