QUOTE (rmcclure @ 12 Jul 2011, 11:26)
<{POST_SNAPBACK}>you said that the tyres look true but aren't they anything but? Like all the other Fly classic F1 cars, the rear tyres are noticeably convex
Yes, my explanation wasn't clear. Although convex, they appear uniformly convex around their entire circumference and there is no "wheel wobble" when rotating the wheels, i.e., the car runs smoothly along a flat surface instead of up and down as some do with out of round tyres. To maximise the tyre's contact patch, it will, as you say, need grinding or sanding flat.
I also have several Fly Marchs. Like the Lotus, they all had round but convex tyres, but I've only given them a light sanding to slightly increase the contact patch. That has provided sufficient grip for me on Scalextric Classic track without magnets. I'm sure if I did what you've done and increased the contact patch to its maximum, grip would increase substantially.
QUOTE (miveson @ 10 Jul 2011, 03:40)
<{POST_SNAPBACK}>Top pictures - did you photograph the model outside?
Yes. Late afternoon sun about 2 hours before sunset.