As the title suggests - that's what I'd like to do but there's a problem.

I've got an carbon lefty ELO and I'd like to mount Marta SL brakes with a 203mm rotor. I've tried a 203mm rotor on this set-up and it interferes with the shock boot when the shock is compressed. The shock boot is the older square type. I do have a newer tapered boot, but before I try it out I thought I'd ask here:

Has anyone got this or a similar set-up working?
Is anyone using a 203mm rotor, and with which lefty version?

Has the height of the lefty lower been increased at all since the carbon ELO (the boot on my lefty comes down to immediately above the disc brake mount)?

Thanks for any responses,
Nick