

Keep using the Superflower my friend, and keep the Pico + Dell transformer as backup if the first fails. Maybe in a year or two you’ll find a great deal on a mobo+cpu combo that’s way more efficient and powerful anyway so all investments made now for a few watts will seem moot by then. Just my 2c.
Btw I also have an old Superflower but only 350W, and I recently got a used (barely) Seasonic Focus 550W in case I needed more wattage again (for multiple HDDs spinning up at boot or in case I bought a GPU again), also gold-rated. I was looking to get a Titanium or Platinum one but the price difference was still quite unjustifiable for my use case (idle server/NAS).
Another thing, I never bothered testing with a wattmeter (except the one on the UPS display) because I read that they’re a lot less accurate at the low wattages that we are discussing. Also the UPS alone causes some losses as well.
I like you. I once pretended I’d never seen roman numerals in my life by reading each “letter” on some engraved stone aloud in front of my friends and some strangers, and this woman looked at me horrified :D