I bought the Prepare and migration tool from Flight Sim Estonia, the graffics are better but I prefer fly in FSX with windows 8.1, the reason is simple. Only 4 add ons FSX full work in P3dv2.1 according the web from Flight sim: http://www.flightsim.ee/products/migrat ... nformation
I hope they can solved the compatibility in the future, another option will be wait for the definitive simulator.
The air up there in the clouds is very pure and fine, bracing and delicious. And why shouldn't it be?--it is the same the angels breathe.