The more I think about it, the more I think that Acc is THE best stat to meld to a SCH Novus. Those 40 odd extra points have by far the biggest impact on your role of all the secondary stats. 40 crit is nice, but the extra crit chance it adds is tiny, same with det, but 40+ Acc is around 8% of your FCoB requirement, which is huge on one piece of gear.