Gaastra Manic 2014 rigged on a MaverX Superlight mast. As you can see the leech is just right while there is a nice amount of rotation in the battens around the boom.
Toby - Gaastra manic 2011
I have tried my 5.3 on a 400 bottom and 430 top and it works very well, its suppose to rig on a 400 but is just a little soft, this combination is good and the sail seems perfect.
Thomas Traversa choose to use Maverx masts in preference to his gaastra masts however due to external presures he is now back on Gaastra masts.