But it dont matter much if it is fully battened or not as long as you have it sheeted to the selftacker. Not much flogging then anyway?
I doubt that the pro and fully sponsored olympic Tornado campaigns Roman Hagara e.a. runs would care about the liftime of a flogging jib if partially battened gave performance advantages. Just look at the pace they go trough spins as an example. But what's the performance advantage of a fully battened jib, and why have we never heard about any testing between the two alternatives?