Mark,

I have not seen Tornado jibs without full battens since the rule change. Not since the classic rig at least. Conclusion should be clear based on that, but as you have seen I am not at all certain.

Another interesting thing you said was that rig tension had a large influence on performance. Did you mean shroud tension, and is tighter==better (it is in my opinion, until you get mast rotation problems).

Sailmakers try to make a living, so they naturally want to sell their products. But I have sent an e-mail asking about relative performance between a fully battened and partially battened selftacking jib, and the why..