mondo point size is the physical length of the foot in centimeters,nothing more nothing less.... the boot manufacturer then adds a bit in their products for toe room and the thickness of the liner, it is the additions which make for the differences in boot sizes with some manufacturers adding loads of room and others adding less
hence thew reason that you may measure 29.5cm and ski in a 28.5 boot or smaller
Understood. For those that are interested I stumbled on one that seems to be mostly correct through an online shoe store via ebay. But of course really doesn't matter as measured size is only the starting point anyway.