Graham,
It's mostly from the Brut-Leuchten Organ (itself a hybrid), but also stops pulled from Zion, Jeux, Prudhoe and Enigma. I also have the Ott and "Birthday" sets but don't use them, as they are very limited. "Chimes" from Leo Christoferson [they are nice, but I'd still like to have real chimes some day.] 31 stops total, plus three trems (1 on the swell, 2 on the choir), 4 generals plus cancel, three couplers, and gt-to-pd rev. I tried to stick with the Rodger's original registration, but made a few deviations: the 16' Pd Diapason is really a 16' Posuane; the "Chorus Effect" tab is now a Nazard on the great; the Clarinet on the Choir is a Fagotto - decent by itslef, but I'd still like to find a free/cheap clarinet or maybe vox humana; and the "Chiff" effect on the choir is now a Celeste - which is VERY nice when used with the Gedeckt 8' and/or Dulciana 8'. These are all dry-ish, but not completely dead, sets which sound good in my condo. I tried a couple of the wet Enigma sets, but they sounded like they were in a cave. I've done a lot of swapping in and out, and have finally - pretty much - settled on this group. I'm still tinkering with levels on the stops, but they are close. I'd like to spend less time playing with the organ and more time playing it. The analog part of the organ still plays completely and in the midst of this project I've had to track down and replace a couple of leaky keyer diodes. For a 40+-year-old organ it still performs remarkably well. I've read posts from people who say that once the VPO is running, you'll never use the analog again. But for short sessions, it's still nice, and there's no start-up time. When starting this project, I considered gutting the Rodgers and going all-digital, would have been technically easier. Glad I didn't. It's like having two organs. I could arrange it to play both organs at once with some audio work, but I don't plan to do that. I've also managed to keep things compatible with the Yamaha keyboard, so the Rodgers can drive the synth in it (but not the VPO at the same time). I've rambled.
Bob