We're talking about an 81 year old Alvis with cable operated 14" ID drum brakes. Linings need to be 100% concentric inside the drum and have 100% contact to be effective.
Who do you know who still does drum brake shoe arcing, as described here:
https://www.youtube.com/watch?v=H-ZF200ZSVs
Can't seem to find anybody in my neck of the woods!
So, Meguiar's M7 Show Car Glaze vs. 3M Hand Glaze? Similar products, like comparing Colgate to Crest?
Should the 3M Hand Glaze be left overnight to seep in, as recommended for Meguiars?
Still testing & measuring!
BlueOvalFitter - in my original post I mentioned NuFinish. It did nothing for this paint
Trav - going back to the WheelerDealer video, I'm assuming the "dabbing the polish on the paint and spraying the applicator" is the way to go. From the photos, the upper panel is the one treated so far and...
The overnight '#7 Rub Down Technique by Mike Phillips' didn't do much.
Today "without sanding I would use 3M Perfect-It with a DA polisher on low/med and a soft to medium foam pad not a heavy cutting pad, with Perfect-It." Minor, barely noticeable improvement, but improvement!
Have just...