Number (figure zero) Spacing vs Capital Letters - 144pt opsz - all weights all widths

A repeated explanation for context: Because numbers are read individually and letters are mostly not the spacing of numbers should be slightly more generous than capital letters.

This is a note about if that's happening the right amount or not

**Regular width**
This is OK in spacing terms. However, the numbers feel quite a bit too narrow vs caps overall. Zero for sure, but the others too. This will look especially odd in a UK zip code like CB4 3EW.

wght: 100 | wdth: 100 | slnt: 0 | GRAD: 0 | opsz: 144
This is OK in spacing terms. However, the numbers feel too narrow vs caps overall too

wght: 900 | wdth: 100 | slnt: 0 | GRAD: 0 | opsz: 144
This looks OK

**Narrow width**
wght:400|wdth:25|slnt:0|GRAD:0|opsz:144
This zero has less loose spacing than O. It should be slightly more than O.

wght: 100 | wdth: 25 | slnt: 0 | GRAD: 0 | opsz: 144
This zero has less loose spacing than O. It should be slightly more than O.

wght: 900 | wdth: 25 | slnt: 0 | GRAD: 0 | opsz: 144
This spacing looks ok

**Wide width**
wght:400|wdth:151|slnt:0|GRAD:0|opsz:144
This looks OK but just slightly looser would be better.

wght: 100 | wdth: 151 | slnt: 0 | GRAD: 0 | opsz: 144
This looks Ok but the stroke of zero feels heavier than O - so please check that.

wght:900|wdth:151|slnt:0|GRAD:0|opsz:144
This looks OK

I am leaving out the slanted for now because Santiago asked us to wait for the update.