Fix your profile link (it points to a priest). Also, "are you sure you guys are right" does not constitute a good post. Point out something specifically and then make an argument against it.
I have looked at several 2h Unholy DK´s who raid Heroic DS and almost everyone of them have no EXP cap
and some no HIT cap, also several of them favor Mastery above Crit...
I have always followed your guides for all my classes so forgive me but the only conclusion I can come to is
that your guides are not 100% in tune with actual gaming experience....or am I missing something?