I know the DL-4 is a good noise making tool, but the reliabillity issues scare me, along with the 1 year warranty. I'm looking at the Boss DD-20 as a substitute. I have a DD-3 that im quite happy with and use for "standard" delays. I don't have much need for delays over 1 second. What i DO have use for is a self-ocillating device that I can use to pitch-bend and create walls of noise, along with creating ambient washes. A short looper would be nice for live use. I'm familliar with the pros-cons of each unit but NO one seems to mention the DD-20's noise capibillities. Thanks. PS, any good alternitives to the DD-20 or DL-4 for a looper/ noise making delay?