Thats the thing to be honest i reckon sims are only good to get you used to the co-ordination needed for flying rc planes, it is almost impossible to compare a person who is good at "computer Games" to someone who is a experienced flyer, Dont get me wrong i think sims can be a great help at start the but i think as you get better there is no subsistute for practice and experience with real models.

Just my 2cents as you americans say.