To tell you the truth, if you are not flying over 10,000ft then the Turbo is kinda a waist of money. now if you routinley fly above those altitudes, then the Turbo is a great asset. Either Turbo Normalized or turbo charged would do the same at altitude. I would opt for Tubo over normalized. the later is supossed to keep (I forget what altitude) the engine thinking it is way lower than it is, but I here no often than not it really doesn't do that. Hope this helped.
Find a RG if you really want an RG with extended tanks.