I did the 30t sprocket too. My sprocket is an Andrews 30t. It's of a standard width. They tell me the Triglide 30t is wider than the touring bike sprockets, but there's room for it to fit anyway.
I have TTS on my bike and I did the VSS adjustment. There is a calculator in TTS that when you size in your tires and sprocket, it comes out within just a mile an hour or so, just a bit fast. I then re-tweaked it again to get it just right against my GPS.
I bought a gusset kit for $25.00 from barefoot3zk5. He still has them available in the For Sale forum, just do a search for gusset.
Other than my initial TTS tune and Fullsac baffles, this 30t has been my best back for the buck upgrade!!!

My cruise and 6th gear light also worked after the change and before the calibration. I was about 10 mph fast without the calibration.
With the wife on the back, as said before, the 1st gear get up and go is fantastic. The first test ride was great. I was alone and got onto the freeway. My entrance ramp run up was awesome. I swear I lifted the front tire when I banged 2nd gear. (Wishful dreaming on my part, but it "felt" like I did anyway.) I was always able to run without lugging at slower speeds than others seemed to be able to do, but now it is truly what HD should be doing in the beginning, at least on CVO's. I know it would hurt their overall mileage estimates, but I don't think motorcycles are under the mandates that car manufacturers are in that regard.
Good luck with your tweaking of the VSS and enjoy the new speeder ride.