Pickups are such a personal thing , for me it's about variety ( I like them all ) somedays one guitar just sounds better on me than another.
From what I heard in the videos the DMO and Mccarty III are nice pickups but from what I am hearing in the videos they are the came pickup one with covers one without , and from what I have heard so far the DMO sounds better to me.
As far as the 408 you were looking at they are GREAT guitars and really let your amp and pedals shine , to my ear they have a very flat EQ so no humps in the Bass , Mid , Treble some say they are not full sounding but if you look at the new pickups they also have a very flat EQ I am betting the McCarty III and the DMO are likely in the 408 / Narrow 408 realm just in standard humbucker shape. I also think these new pickups are being made to streamline production McCarty III for the vintage stuff , DMO for the more Modern stuff , Thinking the 85/15 and the 58/15 and all there variants will be a thing of the past once stock runs out