don't know if folks saw this, Nels C. did a short article in PG:
5. Looper
This last pick was almost a tie between the DigiTech Whammy Pedal and
the mention of my antiquated and super-scarce Electro-Harmonix 16 Second
Digital Delay (which would have been even more cheating on my
part). I use them both all the time. I much prefer the original Whammy
(the smaller red one) and have had some really aggravating experiences
with the newer, "reissue" (the big red one that's not really a reissue
at all—it's just red). But I am so lost without my old EH 16 Second. I
have used it since Bill Frisell showed me his (he is the master) back in 1985. It's always
recording, one can drop sounds into the loop non-destructively, do
reverse (everything does reverse these days, but alas), it's small, It's
magic. It's also rare as hens' teeth, and after writing this column it
may be even more difficult to get! Too bad. To me, it's one of the
coolest things ever, and I rarely leave home without it. I have tried
other things; the nice folks at Electro-Harmonix even gave me a
wonderful 2880 to mollify me since their "reissue" also wasn't a reissue
and didn't do what the old one did at all, and I’d whined loudly and
irritatingly about it. I think it was the first gratis piece of gear I
ever got, and it came with a sweet note from Mike Matthews and
everything—amazing! But sadly for me, the EHX 16 Second DD is all I like
(try to find one and then try to afford one—my first one I got used for
$225). It’s become a part of my playing and my sound, especially in my
own music (The Nels Cline Singers, et al), and with improvisers.
full story:
http://www.premierguitar.com/Magazine/Issue/2013/Apr/Nels_Clines_5_Essential_Effects.aspx