stainless crush tubes, wear?

[TalonMotorFabrication]

I've been doing a bit of digging on this and it seems that the poly bushes only polish the crush tubes and any wear on the stainless is hardly noticeable compared to that of the poly bushes. So now I know that I feel confident enough to put off set 12mm holes in to 19mm adjustable crush tubes.
What I've come up with allows 2mm of adjustment using the standard poly bushes and suspension brackets but requires 4mm removing from one end of the wishbone bush tube to make room for the hex section.