I also run one, and while I have a number of recordings up at the Archive, they're almost all of the aud/sbd matrix variety with two different preamp>ADC chains, though with the Mytek serving as master clock. Point is you wouldn't be able to get a good feel for just the Mytek sound that way, unfortunately. However, I've done a number of acoustic choral and instrumental recordings with MG200>DAV BG1>Mytek192 chain, and it's really stellar. I can't say I've A-B'd Benchmark and Mytek myself, but I talked with a couple of folks who had before I bought this (and reported favorably on the Mytek), and I know I'll be keeping this unit for a long, long time.
The only thing I dislike (and I didn't investigate how the Benchmark handles this) is having to open it up and move two jumpers when I want to switch from balanced to unbalanced inputs. A couple of times I've had to put this unit in the sbd side of my matrix (usually I keep it paired with my Gefells and the DAV) and if the only output I can get is the RCA tape out . . . Otherwise, it's great.
Don't Scott Brown and Teddy run Myteks, or at least have had experience with them?