Even with the difference between the PCMs and programming Brad's tunes feel virtually the same between the 2 cars, the 11 is running a tad less boost (for now).
The 11 wasn't as responsive at PT but Brad made some tweaks and he's made some progress.
PT shifting is improved on the later years IMHO the 13 and 15 were much better. The 11 seems like it likes to hunt then once it figures out where it need to be is a little rough getting there.
14 and up got a much improved pedal assembly. Pre 14 is stiff and difficult to modulate. I would like to swap but Brad thinks the scaling may be different and may run into problems.
The 11 PCM refuses to scale OAR past -1, the 15 was at -1.4
I should probably make a thread detailing all the little changes I've noticed between the 2 SHOs and the MKS.