Aha: On reading more carefully, I see that this isn't a Grace mod -- it's an Oade mod. Things make more sense now; thanks.
Its a Grace Mod. Alex Vallejo at Grace did the work on it.
Yes I bought Chase's soundfield. He is happy with his shotguns.
sweet score. I'd love to give ambisonics a try someday, but i'd prob NEVER be happy with just one source

Schoeps ambisonic mic and I'd be in heaven (not that I could afford it right away anyway) LOL. Anyone have comps of the ST-250 vs Sennheiser ambeo?
I JUST listened to Jef Fugh's (old Team Pittsburgh taper) of his stage-lip ST-250/V3/Sony Laptop @ 24Bit Charlie Hunter Trio from 5/21/2007 earlier today, so strange coincidence to see this thread. I've JUST transferred my 481/V3/JB3 source and I'm going to comp it to Jef's source later tonight. But I'm not sure what config he ran? Maybe Blumlein? Man, I miss my old Busman BSCS-L stereo mic I had back in 2011/2012. Schoeps + that was titties 88: