OK, then lets talk teflons.
I tried the Russian FT3 teflons as .1uF bypasses on both my speaker tweeter circuit and as bypasses to coupling caps in my phono stage and CD player..
This cap is exceedingly resolved like only Teflon caps are. After living with this cap for a long time, one has to marvel at its consistently musically-revealing nature and tonality. It doesn't wear its detail resolution on its sleeve, yet when one chooses to listen for it, the extension is impressive as well as actual detail and airiness without obvious glare.
Is it as good as the Sonicap platinums (no) or the VCap's (no)? Those are both a bit smoother than these FT3's, but they are also priced 4-5X higher. Does it have good bottom end extension? No, it is adequate but not as good as many more basic caps like Sonicaps or Multicaps if you are going to use it as a single cap replacement instead of a bypass. I tried the FT3 in my Hagerman Piccolo step up and it was not a good match with this tiny signal. I reverted back to a Sonicap II which was much more fluid in that position all by itself. I also tried it as a bypass for the woofer caps in my speaker, and that was a mistake. It seemed to shift the crossover point higher which caused a mismatch between tweeter and woofer.
Over all, and for the price, these are a no-broainer. Easily available on e-bay you can buy several and try them out for little cost. The shipping might take a month to reach your home from the Ukraine or Russia, so make sure to buy enough to use elsewhere to avoid that extra cost and time again.
Oh, one more thing. It seems that stringing teflon caps together from one component to another to another can result in a too much of a good thing problem. Used in the source and speaker, it might be just the ticket, but used in the source and the preamp and the amp and the speaker it could easily sound cold and analytical.