I'd be interested in trying QRSS on 160M. It seems to me that it is a Digital mode, not CW, and as such would count as DXCC RTTY, not CW, and should be done in the Digital part of the band plan, not in the CW only section. But I guess the ARRL would have to rule on whether it's Digital/RTTY for award purposes (unless they have already?). 73, George W5VU