RE: How do you know...
IMHO, if you really want to get into turbines, then work your way up to something like a 60 to 180 sized P-51 and get to the point where you can land it comfortably from *both directions* and do basic acrobatics. At that point, you are ready for something like a Boomer. Boomers aren't that hard to fly (the P-51 is going to probably be a bit harder), but you're going to have a lot of $'s riding in that Boomer and the consequences of a crash are going to be poptentially more catastrophic, so you need to be proficient to take on a turbine...
Bob