I'm not sure. Probably recoup some cash on sale. I can't imagine things sounding better than they do as I'm sitting here listening to "I Will Sing You Songs" by My Morning Jacket though. This thing is great with some time.
The thing is even if the Manleys were even exchange on sound, they would fit better. The Prima is literally turned sideways on the shelf right now with wires visible from the front. The Mahi's will fit on the shelves no problem, and hopefully sound better.
I also broke down and tried the 9XI and will be selling a couple Zephyr Star ES with 100 hours on one and 300 hours on the other. I just like the ART's better (if you couldn't comp them one after the other you'd probably never know the difference). The XI is even better than the 9MC. It adds a touch of the air like that on the SS cart, but not quite as much, and the bass is a tad tighter an deeper than the MC - a smidge. The effect is the same profile as the MC with a little more resolution and a tad bigger stage You can also use EZ screws with the XI not the MC's.
It's been a good year and I can do this... but I really have to stop now LOL. Plus I think I'm at the point were significant improvement would start costing 1/3 or half my total set up per piece.
EDIT: I will definately be selling a PS Audio Stellar strata as well, which I have to say held up well. If I hadn't gone full tubes I would recommend it to anyone. The headamp in it is right there with the Magni Heresy and the the wifi/controllable DAC/streamer is pretty great though it's waisted on me. It's a very nice Integrated.