[Graham]

And just a quick word about Rally guides (has been added to the header page)

This is how the blade profile should look, ideally stem with spring fitted.

The blades depth on these 3 guides were measured as 5.6mm which is absolutely perfect for this proxy, length 18-18.5mm and thickness 1.6mm  

   

Any car fitted with the front of the blade protruding or pointy bits (like standard Scaleauto guides) will not work for some of the Rally Tracks