I had been shuttling between the thought of getting a F3 or F4 for the past month. I simply love the sleekness of the F3 :mouthwate but the main reason it's putting me off for one is the compact size(ironically F3 is using compactness as a selling point). As for the F4 it's the power that tempts me. I'm 6ft1" 133lbs and I felt like slenderman on a circus bicycle on it while posing around town. During normal posture my knees are almost touching my elbows and there is some problem shifting without shifting my knee outwards from the tank. Since I cannot test ride it, can someone with similar build provide some insight on the overall handling and posture on it?