96khz and 48khz will contain different packet size/packet sample I think thus preventing dual running (maybe possible but require 2 packet branch and thus may increase latency for both), and in regards to 64×64 channel SLink I think it is more inline with the fact that SLink and DXHub and GigaAce has similar bandwidth (as seen on DLive structure which also has similar cascading limitation on DX). I do wish SQ has atleast 1 more expansion slot and remove USB recording in favor of 48channel/64channel cards.