Ended up pressing last night. Overall, went pretty well however there are definitely a few things I'd do differently in terms of overall set up. But, live and learn.
There is at least an inch of sediment at the bottom of the Cab carboy and much less on the Zin. This I know is a direct result of some fumbling on my end. I'll rack off the gross lees today and pitch MLB.
Consider giving it another day or two before racking off of the gross lees, you don't want to have to do it again just after pitching MLB.