US orgs are based on OEM displacement. So the 1299 is legal for all the same classes the 1199 is.
I will be able to race against all other Liter bikes (which will give me 3 classes). And my org also has a "Heavyweight Twins" category, which will give me 2 more classes.
I kicked around which bike I wanted for several weeks. At the end of the day, the motor differences are miniscule. In other words, it looks/sounds good on paper, but I honestly don't think I would jump on the R and immediately go 2 seconds faster.
Besides, we are kind of "splitting hairs" when measuring the performance between the 2 bikes. I mean, there isn't a single rider in the world who could honestly say a 1299S is "holding them back". If somebody can't podium with a package that has 200hp, 100lb/ft of torque, TC, WC, LC, Cornering ABS Clutchless Up/Down shifts and weighs under 400lbs in race trim...then they need to work on their racecraft and overall skillset.
In other words, if somebody finishes in 4th place and says "I could have podium'ed if I would have been on an R"...I will have to call ......... Haha
I wanted the updates that came with the 1299 and in all honesty, I want to try the electronic suspension. I haven't heard a lot of good things about it as it pertains to track riding in the past, but RRW had a lot of good things to say about the EL suspension on the 1299S. He said the suspension would stiffen under hard braking, then soften as the brakes were trailed off, allowing him to make the apex no matter how hard he charged the corner. I am fascinated by that and want to try it.
If I don't like it, then I will remove the EC stuff (or just run it in "Fixed" mode).