just installed my givi 2122DT and immediate results are satisfying. I am 6.2" with 34" inseam and at high screen and seat positions i get slight buffeting just on top of my helmet...planning to add a clip-on to solve it. Otherwise i would confirm 70% improvement over stock. tried various combinations with screen/seat height and top+top seems to do the best for me but the "aura" buffeting will have to be solved. Belgium is cool so no heat issues (yet)