Ok, we got a winner! Its currently living in my temp chassis and making great sounds. The startup process was super easy and straightforward. Amp is extremely stable, with minimal drift from cold to hot. Just now getting some good listening time, so I can't provide a big list of audiofoolery descriptors.....yet 
Having now built common source amps, common drain amps, and now this DEF amp, my initial impression is that DEF resides somewhere between the weight and richness of a common source SIT amp and the sweet, lucid sound of a CD follower. Obviously that grossly oversimplifies all the factors involved, but you get the idea. Definitely a keeper!
Thanks ZM!
*edit – I forgot to add that its really quiet too... exceeded my expectations actually, at least when it comes to signal iron amps.
Having now built common source amps, common drain amps, and now this DEF amp, my initial impression is that DEF resides somewhere between the weight and richness of a common source SIT amp and the sweet, lucid sound of a CD follower. Obviously that grossly oversimplifies all the factors involved, but you get the idea. Definitely a keeper!Thanks ZM!
*edit – I forgot to add that its really quiet too... exceeded my expectations actually, at least when it comes to signal iron amps.
Attachments
if you think of post#4 here: https://www.diyaudio.com/community/threads/scryer-or-how-f8-met-mighty-sissysit.388550/post-7078132 , then it is obvious that you're not reading posts at all 
My bad, sorry.if you think of post#4 here: https://www.diyaudio.com/community/threads/scryer-or-how-f8-met-mighty-sissysit.388550/post-7078132 , then it is obvious that you're not reading posts at all