There was a thread on the Neil Pryde forum (Cabrinha) where a guy had increased line length to 35m on his 16m and 12m and reckons that it resulted in MUCH HIGHER boosts. (another poster backed this up)
Sounded pretty exciting, anyone had a go at this over here....I never believe seppo's.
30m lines and 3m leaders... rigged on an AirBlast10.
great for light wind days on the lake with a big flat board without fins... until the wind dies in the @rse completely, then it's just 33m of spaghetti