I find it strange that no more people are talking about these profiles.
For me, those are the best Princeton Reverb profiles available, period.
YTZ Prince-ton 3 has been the only profile dialed on my Kemper for some months.
It has that grit that i sincerely thougth the Kemper couldn't reproduce.
Extremely touch sensitive, with or without a tube screamer added.
Nice double reverb settings included, one legacy reverb and one spring reverb in a row, with the spring in second place (i would have done the opposite intuitively), which are a big part of the result, i guess.
I have no link to this guy, never ever communicated with him, i don't even think he is on the forum.
The Fender PR is my favourite amp, so this makes it my favorite Kemper profile.