Hi all,
Just to report back. I went ahead and built myself a Flavor 2 PC for my SWL9.0SE. I built it with leftover cables from Chis Venhaus (don't recall if it was the cryo'ed version), a Marinco plug and a Schurter 4300.0603 IE. The latter two aren't cryo'ed either. Burned it in on my computer for over a week before using it on the pre.
Using Chesky's Ultimate Demonstration Disc as a reference, against the stock PC, the Flavor 2 definitely retrieved more detail, expanded the soundstage and extended the highs. I did't notice a different in the lows, but I think my PSB Stratus Mini speakers are the limiter there.
This wasn't evaluated blind, but both my wife and I noticed the difference in the sound, and she's generally indifferent to my audio adventures. That's good enough for me.
For the low cost, definitely worth it. Don't know how they stack up against other PCs, but I guess I don't really care at this point.
Cheers!