The buffeting seems to be different between pre-Tripper models and models with Tripper, too. The windshield is larger on the Tripper models - I'm 6'3" 230ish and only experienced severe buffeting on my '22 Himmie when I was behind larger vehicles at 60+MPH. I put a PowerBronze screen on my bike that is 100MM taller (bout 4 inches) and it solved my issue.
Cut it down or add a larger one, the choice is yours! The stock screen is definitely a problem for some torso lengths. Also note, changing mirrors and/or mirror position can alter the windstream at speed. Mine got better with a 40MM riser, for example, but wasn't quite enough to stop the buffeting.