Hi Mike
I have just sold mine. It was a lovely boat, well put together, quite quick, and would pick up the slightest bump and run with it. I normally paddle a Stellar SEI, and found the DD3 to be a bit more tippy at 43-44 cm wide, so is in the skinny boat category. It does have some good secondary stability though. I believe that these boats are similar in handling to a V12, though not having paddled a V12, could not verify that claim. I admit to struggling with it in rough conditions, but that was more about my ability than the boat. Other paddlers have paddled it and liked the feel. One comment was that it was better suited for a taller person, as it does have a reasonably high seat hump. If you are over 5'10" you will be OK.
If you have the opportunity, take it for a spin before committing.
Ross