I don't know about the the Tulsa, I have the Baker's. I absolutly love being able to adjust how much or how little air my wife and I are subjected to. In cold weather we can eliminate most of the wind and buffeting but in hot weather we can really bring it on. Its also convenient being able to adjust by degrees how much wind we get as the tempurature changes during the day.
I bought the Baker mirror wings at the Gold Wing Rally in Madison last year. They are not the most stylish but what I like most about them is that on a hot summer day you can deflect some air on you. They are also great at keeping the cold off of you this time of year. Something that wasn't necessary with the old GL1500.
Both the Tulsa and Baker Wings have loyal and happy followers and proponents. I prefer and like the Tulsa Mirror Wings and think their shape just blends and fits the profile of the Wing perfectly like they were make for the 1800, and I just didn't get that same feeling with the Baker's.
I fought with myself for a long time and asked the same question as you have. I finally went with the Bakers. I'm very glad I did, being able to adjust the air volume in the summer really makes a differance. I do feel the tulsa's look better, but the bakers are not ugly by any means. If you decide to get the bakers, use something to hold the mirror in place as you remove the screw. I used cloths pins around the perimitter to hold the glass in place, using them as a wedge.