Custom Sleeves 88mm-90mm (opinions)

[Juan Cardenas]

cool, so darton is actually gonna make these? that
sounds like a deal to me, I can get custom pistons
made pretty easily, would be cool to have the sleeves
ready to buy, but that .pdf might come in handy.
What's gonna be the bore size out of the package 88mm
or 90mm? stock bore is 86mm correct?
JCC

BTW - even if this material is stronger than the stock
cyl sleeves, how would the thinnness of it affect it's
endurance in high performance applications? would be
cool if we could get a nice tech viewpoint on this.