I have found out that my old Japanese Arion SCH-1 sounds great for drier, subtler Frusciante -esque swirly stuff with the following settings:
0% rate, 20-25% depth and a 60% tone. Almost imperceptible until you switch it off!! The Arion is a very good sounding pedal in the style of the DOD FX65 and to a point, the BOSS CH-2. Not like the more recent BOSS chorus pedals...
