Digital BW, The Print

On their website the Colorbyte company claims to support MIS 
FS    a n d   MIS VM quadtone printing.
Is anybody using the MIS VM option on any printer, and if yes, 
where did he get the specific software/profiles?? 
And not to forget: how are the results?
Background: I´m running my 7500 with IP4 and MIS FS but have 
a 1290 loaded with a CIS and MIS VM. Would  like to compare 
the Roark Curves with the IP4 RIP.

Bernd