I also toe-in, and I like less Q. However I don’t know if that would still apply if I were a hardcore technical terrain rider. My skills are such that I don’t think a difference in Q would matter much to me. My main MUni (Wilder/Profile) cranks flare out and I like it just fine.
The reason people who toe-out would like wide cranks better is because they tend to whack their ankles more. For the people who’ve had this problem, you know what I mean.
I think the KH Moments are kind of in the middle. Is that really 10mm? Total, or on each side?