I heard a few years ago that there is equipment available to accurately measure bore size through a plug hole.

Stroke can obviously be measured easily this way anyway, so if this technology does exist it will save a mass of time and money.

Has anyone got any info on this? I know this doesnt address things like camshaft lift and other internal specs for supersport regs but at least it could be used for the basic capacity checks.

And thinking about it, if it doesnt already exist, it wouldnt be that hard to make such a device to accurately measure bore size, i've got a design in my head already.