When I use the SFP ASIO drivers in Cubase the audio tracks crack up while using the gigapiano even with just a few tracks of audio but with Microsoft drivers the audio and the piano work. I have to put the ULL on the slowest setting.
I have a 933 Megahertz ASUS CUSL2 with 512 megs of RAM and a second drive for the piano. The gigastudio audio is fed into the SFP and not Cubase.