I had a short test sail on the Isotope but I think it is better if I patch you throught to the Isotope sailors present at Hartwell.
Pesonally I thought that the boat I sailed point well for a sloop and many indicated that it is a fast baot in the lighter airs.
I also noticed the storage compartments in the hulls. Very hnay when cruising.
Our fellow regatta sailor J.P Ayers handed out tins of soda during a race. And actually told me how to use the daggerboardwell as my cup holder.
Wouter