Really liking this little pre. Have been listening to it for a couple of weeks. Thinking about upgrading the 150uf 16v cap and the 2.2uf cap. I have noticed a few people have talked about using a Black Gate for the 150uf. Since they are no longer manufactured, I could not find one with the same value as the one that is currently in the Quickie. What value would be acceptable? Or would another brand be better to try? Also looking for suggestions / recommendations for the 2.2uf cap.