Volkl kids skis - boot center?

[RollGybe]

Hand-me-down 124 racetigers in hand.

There is nothing on the ski to indicate a boot center. This is the 3rd pair of Volkls we've gotten handed down to us with no markings. I've measured the first two off. Mounted one -2.5cm and one on center line (did not document my rationale).
Granted these are kids skis, I can mount them anywhere I suppose.

But there must be some information out there. Seems strange to make it extra thought-provoking to mount a 10 year old's skis.

Anyone know?

[RollGybe]

For posterity, there is a number "0" at the end of drill bit marker. It looks like it's part of the drill bit marker, but it's an extra digit - hard to notice.
This is the center.