Conclusion so far (11/10/11)
So far the wing is doing all we hoped it could do bar the fully feathering bit. It does do that... and could be made to work with more time and effort if necessary. We just don’t feel it is necessary. The only downside of this is the time it took to design and build and the fact that we are now perhaps carrying about 7 kg of extra weight due to its inclusion. It’s a small price to pay as some of the aspects have made the wing more manageable in other areas of assembly, storage and general maintenance.
The wing is very well mannered compared to the last one and seems to be delivering all the power to get us going. It is definitely more sensitive to sheeting angles but we knew that and accept the compromise.