I too miss my ultra 's 4x12 t75 cab along with its plexi amps. Really like the Friedman models in the II. It would be nice to be able to get back the plexi and 4x12 cab as a option
Why not just release the old cabs in AxeII format and you could insert them as a User Cab in any fashion you would like.
don't forget that Mono HiRes has a different length now compared to the old ones...right.
it's pretty easy to get a user IR from this (or any other) GenI cab.