I was curious about th edifferent sims that are out there. I was thinking about getting one but I would like some opinions on the physics. I am not as conecerned about the graphics. Between Realflight, aerofly pro and FMS which do you think has the best physics engine. Trying to decide if it is worth spending the cash for Aerofly and realflight if their engine is the same as FMS which I can spend 50 USD on a cable for my existing controller. Thanks