Dr J - I have one of those British anti-static brushes. Not sure if it is made by Hunt but it has a foldable top handle, if that helps identifying it. I also use a Zerostat (1978 vintage, still going strong !) for LPs where there might be particular concern on the static.
I second everything that you said in your post on the VPI and the RRL cleaning fluids. I use both the deep cleanser (2 applications) followed by the regular stuff (2 applications) per side, applied with the VPI brush (no problem). The difference has been astonishing, particular to older pressings such as the heavy vinyl Blue Notes, Contemporaries, Esquires etc. There's a huge opening up of the sound, improved separation of the instruments and general improvement in 'finesse' that is at least the equivalent of a major cartridge upgrade. Worth every penny !