Mike,

Indeed you need to ease just a bit. The Falcon spin is cut flatter then the original Blade one meaning it is easier to match your mainsail position to the angle of the wind (you sail higher and faster).

Just watch out if you start to head up with the main eased to make a mark for example. If you have the main eased and leave out the traveler a fair amount the mast becomes very bendy... :-)

Gill