Thanks for all the feedback... very helpful.
Though there are some varying opinions here, what I got out of this was what is bothering me the most is the buffeting of the entire bike, especially from strong winds and passing semis. Some of that is a given, but the majority here believe the BajaRon sway bar will help. I find it a bit surprising that an issue big enough for so many to think the new swaybar is such a huge fix as to be critical... hasn't just been corrected by BP. My opinion. I'll probably end up getting one.
In a related issue, somewhere between 25 and 50% of the drivers out there believe laws and safe driving apply to someone else. God forbid I should stay in the right hand lane and do the speed limit. It pisses people off, especially if they have a traditionally macho vehicle. God forbid the driver should be young and needing to show off how macho they are. Ugh. OTOH... In my experience, most semi drivers will pull up behind you and simply pass, without crazy tailgating, unless a hill is coming up... in which case I do them a favor and speed up a bit. On two lane roads I'll frequently pull over to let people pass, and there hasn't been much of an issue there.
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Just got back from a three day jaunt through the mountains and plains. Worst wind and traffic was yesterday last 100 miles of interstate with strong cross winds coming off the mountains and interstate traffic hurrying home and occasionally causing an issue for the most part our group of three Spyders and a bike kept to the right lane running 73-75 mph (75 posted) and we only got split up once with the bike missing an exit.
As far as the buffeting, the older 2011 RT with solid windshield seems to get the "blast" of semis on the two lanes worse than the new cut-outs that the 2015's have. My wifes '15 RTS and the other 14 RT Ltd seemed to do better. I may try to add cutouts to my old OEM shield. Both our bikes were laser aligned and track well. We have Rons Swaybar on the '11 RT and I like it, but the wife is happy so far with 12,000 miles on the 15 with the OEM setup so the jury is still out.
Overall, ride your ride like you are, learn to get comfortable in the seat and grip with the legs when that seems to help, keep a light grip as many have said and ENJOY!! Trust the Spyder,, a blast may jostle you a little, but it will track straight without needing much input.