Perhaps Chrisian would like to comment on the manufacturing technique used to bore the holes. If it is a CNC router, at least one made in Germany, I would suspect something on the order of +/-.05mm (.002") or in our world, perfect.
I don't know if this means anything, but I have three mft table tops purchased at different times, but all within the last twelve months. I have had them separate but now in a jumbo mft. One of them was a little thicker and much darker in color. Was there possibly a change in distributor ? Would this lead to differences possibly?
I remember I read somewhere in this forum that recently Festool slightly modified the hole diameter,
and this was confirmed by a Festool representative