Well I think my wife and I have made a decision.
we selected three groups of music all on the Cdx2.
group one was
Young Man in America by Anais Mitchell, Magnolia by Lucinda Williams and Banks of the Nile by Sandy Denny/Fotheringay
group two, chosen by my wife, was
Your Mama by Frank Zappa, Awaken by Yes and Xanadu by Rush
group three was
Mahler Symphony 9 (BPO/Karajan), Schubert Trout Quintet (Schiff/Hagen quartet) and Mozart Violin Concerto 3 (Anne-Sophie Mutter)
We swapped between the Motives and the Momentums, which we placed on my old Kan stands sitting sideways as they seemed to prefer that in their warm up session.
Both produced some great results and Neat should be proud to have these speakers in their range. The Motives produced a lot of lovely rhythm and timing, just a little extension on the bottom end which never felt overbearing and a very sweet tweeter. When driven hard in group two they did begin to get a touch muddy and in group three they did not have the grandeur or scale of the Momentums, hardly a surprise. The Momentums seemed to have run in very nicely and certainly enjoyed the wider spaces of my new hifi room. Timing and rhythm was much improved and the level of detail is simply amazing. Hard driven in group two = No problem and group three produced simply the best sounding non-live classical music I have personally heard (I am sure there is potential for better, but that is for the next upgrade, or hopefully proper stands and a bit more run in).
So, the decision... The thunder monsters, sorry I mean Momentums will be staying in Chez Belfast Taxman. Bad luck Motives, a lovely speaker.