no need to move the whole thing, just cant the rig by shortening and lengthening the stays as per most multis, quite efective but you will be penalised on handicap ratings and it all gets a bit of string pulling excercise for little gain.

Thought about rotating the mast base in an arc centred from about the front stay area, lower it down to the leeward ( less RM )when getting overpowered or wanting to point better ( as per the windsurf rigs, it creates lift vertically of a form ), pull it back to the middle on the downwind run, certainly on the Bitsa's to do list.