When do you get stuuters

I am thinking about geting rc4 with the update. But, I heard people get stuuters. When exactly do you get stuuter.(I know when the wavs load up) but during taxi, TO, landing, or while sitting at gate.ThanksAlexhttp://fs2crew.com/linepilot.jpghttp://www.pic767flyingclub.com/siggies/lsd1.jpg