You sent me a personal message on this topic.
I hope it is ok that I show it here, because I think it is a valid discussion.
You wrote : One of the reasons your 4-shot looks so good is because Hassy and LightRoom's algorithms are way behind Capture One for detail on 1-shot captures. If you compared to the quality of an IQ140 processed in Capture One v7 you'd be surprised how much of that advantage goes away (or wins if there is ANY vibration or imprecision in the multishot). I've done this test many times, as our Cultural Heritage division has been competing against multishot for many years (http://www.dtdch.com/
I so not agree with you on this.
I have had a lot of P1 backs ( Lightphase, P30, P65+ and IQ140. )
And I have had some Hasselblads.
I used C1 for a long time, both on P1 backs and Canon and Nikon.
Don't use it anymore for several reasons.
I like the skin tones from the Hasselblads much more than the P1s, and I don't find them any
less sharper than the P1s.
But of course C1 have some tricks. Even if you turn the sharpening down to zero, it adds some sharpening.
Just for fun I found some of my IQ140 shots from 2 years back and compared them to my H5D40 files.
Resolution wise there is no difference IMO.