I tried the 8's and the 10's and in my room the 8's were better in the midrange but the 10's were more powerful and filled the room more easily especially on major classical music.
The point source 'coax' idea in interesting and so far i have played with the following speakers using the same technology: Tannoys 8 and 10's , the Thiel 3.7 and SC4, the Kef 207 and I have the Pioneer TAD system to listen to next.
james