It is possible that recently built Pros may have sailfish already installed. My printer is the MicroCenter re-badge of the Pro, which I got in October. The firmware was different than the software on my earlier printer (warranty replacement from a failed controller board), and has the sailfish features built in to it, so I'm figuring that it is, indeed, sailfish.

When you get the printer, check the bed leveling, which you should do anyway. If it has a manual movement leveling routine, and if you poke around in the menus and find "ditto print" in there, you're likely running sailfish. I'm using the replicatorg 0040r28 sailfish version to drive my printer, and it's working correctly.

Cheers,

John