So..... about 1/4 inch of tire to fender movement.... but .....
is this fork twist or bearing slop.Brace will solve twist but not slop.
I've been debating the brace for awhile. Was going to get one, but when I took my wheel off to get a new front tire I realized that the axle holds the two fork tubes in place and it goes into fat chunks of aluminum so there should be almost not tube to tube twist.
So, to test if it's twist or slop, I added a thrid reference point (see below). And, found that the fender & upper forks do not move, so there is very little twist, if any. (my eyes aren't perfect....) Was thinking that the duct tape might be moving to damper effect but still would see movements because of lenght of wire.
Bearings? (Greg.... you said this before....) . Tighten the axle??.. steel & aluminum expand at different rates, so I guess it should be checked & re-torqued (to spec) every once and awhile.