Big difference may be the presence/absence of the limiter/compressor on the original Moog rackmount phaser. I do not know if the Moogerfooger has a similar subcircuit. As for complexity of the floor pedal vs the rackmount, well, there are concrete limits to how simple you can make an allpass filter based around an OTA. Once you have 12 allpass stages, that circuit is going to look busy, no matter how you slice it.http://modezero.com/moog-12-stage-phaser.htmhttp://modezero.com/moogerfoogerphaser.htm
Other major differences include the substantially different sweep rates on the two products (10hz maz vs 250hz), and the rackmount's capability of selecting not only more phasing tap points (4, 6, 8, 10, 12) but also where the regeneration tap point is.
Certainly, the fact of being 12-stage units, and the fact of being OTA-based units, will create many commonalities in how they can sound, but the two are clearly different beasts. Anyone looking at the scanned schems for the older rackmount unit surely has something delicious to look at, and a great source of information, but it is NOT the floor pedal and should not be confused with it.
I can not vouch for what anyone might have in their personal off-line collection, or what may or may not have been reverse engineered. However, I stand by my assertion that in general one should not expect to see factory schematics in circulation for expensive, complex circuits that the manufacturer does not expect guys at the repair bench in your local music store to be working on.
Doesn't matter if they are simple things like Cornish pedals, either. If the manufacturer wishes to assert their "brand" by maintaining quality control over repairs and product performance, they keep the schem/information to themselves. The alternative is that somebody with insufficient expertise attempts repairs/mods, and their poor work ends up being the first and only time somebody gets to hear that product. Not a great advertisement. In the case of things like Boss, DOD, etc., there are enough pedals in circulation and on display in stores that some local guy's poor soldering job is unlikely to form the basis of any prospective consumer's idea of the pedal, so they don't mind releasing the info that will permit the local guy to do that lousy soldering job. Most of us here, though, will have limited opportunity to try out the higher-end pedals or hear them. Those manufacturers want that occasion to feel like you're driving a Ferrari, each and every time it happens. Eventually, the information WILL leak out and disseminate, but the intent is to maintain control over the brand for as long as possible, until it is well established and nothing can dislodge it.