Metal zero.

How or Is it okay to silicone recess a Metal zero?
And how?

I have never seen anyone silicone recess it. I have seen people add schmoove rings but my best advice is to put on one dif pad, wear it out and wash the bearing. This will make it unrespoonsive. Or, just dont buy it. I do not like metal zero’s at all.

Now to exclude the bias.

I haven’t looked at the Metal Zero to see how thick the walls are, but it might be possible to recess it.

You can, I’d just make it a little shallow-er than a FHZ.

Sili’d and schmooved by me.

Looks cool. ;D