Just the guy I am looking for

From what I gather you ride the R18 C and have tested the R18 B... Therein lies my curiosity. A few questions If I may
1) Is the B rear suspension "sorted" out with respect to harshness that one finds on the rough patches with the R18 ? Is the B with Bmw's DeSa type suspension and does it make a huge difference in comfort ?
2) I am not a fairing guy as such so I prefer the Classic or R18 look to the TC and Bagger - BUT the deal breaker is the rear suspension. I was reading that BMW has addressed that with some changes to the chassis in the R18 TC and B. However I was curious what that change is with respect to the rear suspension . I understand that they changed the front geometry to take the extra weight of the Fairing and all that they stuffed in there, I am also curious how that changes the lovely front end ride of the Original R18 bikes, what with the sharper rake of the TC and B) however, what really intrigues me is what could they possibly have done to the rear that cannot be fitted on the R18 originals ?
That having been said, I am wondering if it is at all possible to install whatever they have provided on the TC and B for a better more comfortable ride, on the original R18 - kind of best of both worlds