Hello, please forget about the whole Chrishitstopher thing, as I was making a new email address and I didn't want a recognizable name.
I have built the saltwater capacitors, before, and they were very inefficient, because I used aluminum foil rather than the saltwater for the outer dielectric. My dad told me that he didn't feel comfortable with me having high voltages running in saltwater, so I couldn't build the more efficient capacitor design. I may try it, soon, anyways, out of desperation.
Anyways, I was hoping for some better capacitors that are made for high voltage by a company so that the losses are at a minimum with a small package size.