Just watched a YT vid showing how this stuff works on car rust--pretty amazing. It's pH neutral and supposedly safe on "painted surfaces." This seems to be one of the go-to rust removers for car detailers. Of course our stuff is blued, or parked, or whatever, so don't want to be first to try it on an otherwise nice Enfield (LOL).

If you've used it, how does it compare to EvapoRust and sodium citrate rust removers?