Choosing an SUT?

I just was on the soundsmith site where Peter Lederman recommends a transformer with a 1:10 ratio and >470 ohms.
To answer the question about using the mc input on my Chinook the, answer is yes. I am doing as much research about them as I can.  I want to experiment to see if I can improve the sound. 

You bring up good points about the gain achieved by the Chinook.  Other owners of this phonostage have indicated the superiority of the mm side over the mc side.  With a transformer I can exploit this advantage.   It would be great to audition candidates to see if it's true. 

What SUT are you using?