Jamming about this evening I realised, contrary to the conventional wisdom, that my setup needs more envelope generators.

Since single stage envelopes are good enough for my purposes, I first thought that Mutable Stages would be the most space efficient coming in a very reasonable 2.33 hp per envelope. But of course you can get an ADSR from 2hp (among others) which requires only 2hp.

Now Stages is certainly ergonomically superior to 6 x 2hp ADSR, and it has some different possibilities (notably not including being 6 ADSRs) but lets think only about density. Can 2hp be beaten? Is there a module on the market that packs in envelopes more densely than 2 hp/EG?