Get yourself some Sudio Note Copper Foil caps. These are far superior to the one you mention. Perhaps more expensive but easily worth it.
Coupling cap upgrade possibilities for VTL?
I have MB-185 Signature mono's, and the factory offers the cap upgrade to (I believe) Infinicaps or Auricaps for the princely sum of approx. $800 the pair, not including shipping of course (I think there are six caps per monoblock). If I try to do this work through a local tech instead, anybody have suggestions for the best possible caps to choose (don't know the value right now without looking inside)? Prefer answers based on personal experience, especially comparitive experience in tube circuits, although not necessarily with VTL gear (but that would be nice!). Thanks, Zaikes