I have tried with the bike in the workstand and me lifting the wheel up into the dropouts, I have tried with the bike upside down, and I have tried with the bike the right way up and me leaning on it and not leaning on it, all results seem to be the same
when the QR is done up the wheel is fine, no play at all, when the QR is undone…. well….. it’s loose, like you would expect….. not sure I understand that one could you explain a bit more?
as for worn dropouts the bike is 400 miles old, I try not to take the back wheel in and out a lot because of this problem, so they should be fine, all I see is tiny indents where the ridges around the axle press in, which I’m pretty sure are normal
like I said earlier the wheel was aligned yesterday, I don’t think wear could do that overnight
I’m still clueless, I can’t understand how the disc rotor can be so much further over with no apparent reason, yet the wheel still appears centered in the frame
I would say the rotor moves by over 1mm when this happens, which is huge for something like this, I don’t know if the rotor is moving the same direction each time or moving out and back again