Well, I have a Boss DD-5, but I might have some useful tips. I don't know what the difference is between delay 1 and delay 2 is though, what is that? I think a common thing is to make the delay to out there, rather than making it subtle. Setting the level to a lower setting helps make it more natural sounding echo, and putting it high accentuates the delay almost to silly extremes I think. Similarly, there are very few instances when you would want high amounts of feedback, because if you play any runs or anyhting the sound will become too cluttered. I tend to keep the feedback at only a couple of repeats at most, unless I am being very sparse with my playing.
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