i have a KONCEPT 5.0 and rig it on a RDM, it's a powerfull sail and has a great range and would equal a freeride 6.0, on the water it's as light as and very twitchy and unless your fully powerd up say 20 to 25 knts its very tricky to jibe and theres no room for era, it feels like i need an extra 6" on the boom and leech,
has anyone found the same problem
the sail is rigged on a loft 400 RDM 100% with mini cams and neil pride cam spaces too compensate for the RDM