As far as I'm concerned the old Ibanez DE7 is still the king of delays. It's got an organic sound, nicer than many analog delays. It will self oscillate like the best of them. The sound is brighter than most analog delays, but I like it that way. You can always turn the mix down if it gets in the way. I also have an Artec ADL-2 which is great. It says it's analog but most folks on the interweb agree that it's actually digital that sounds analog. Digitech Obscura sounds nice on YouTube though. I might also be interested in the MXR Carbon Copy Bright. Are there any standard size digital delay that does self oscillation? Most analog delays are too dark for my taste. How hard can it be? Ibanez got it right twenty years ago. I recently found a YouTube video that compared the "self oscillation" sound of several digital delays but that but that was a big disappointment. End of rant. Discussion open.