If the OCD is a 250, then I suppose I should dig deeper into my Dunwich ODB! (That's an "OCD", right? Been a while, I can't remember!)I've always wanted to try a Spiral Yellow because of how much I like the 250.
I don't have a Lil Fella anymore but my understanding is Fulltones OCD was a take on the 250 with an added tone control annnnd a Lil Fella is a take on the OCD. Folks love the Lil Fella.