I have a paragon clone that I bought off of ebay. It came with silver-plated copper contacts and switch magnets. I did have to slightly modify the top cap insulator so that my attys would sit right and I could eliminate battery rattle, but after fixing this, the
mod is perfect. It hits hard and looks great. I have never tried anything other than sub-ohm on it, as I never build higher than about .5 at max. Most of my RDAs are in the .2 to .3 range.
I don't know anything about vapingwalrus though.