Question about Line 6 multi-delay

Hey all, I just got the line 6 multi-delay pedal (the big green one) and have had trouble figuring where in a song to use what kind of delay and how to write guitar parts incorporating the delay. I am a metal guitarist and have been told many times by people that a lot of metal guitarists use delay but I can not point it out in any metal songs nor can I write guitar parts that sound good using the pedal. My main problem is, I will shred or something and it just sounds so jumbled with the notes playing over each other and everything. For anyone who has this pedal, what are some good settings for shredding and sweep picking? Thanks a lot for your time everyone, take care!

You could use some LIGHT delay on solos...might not want to over do it(unless you want to have it follow you on certain passages or the entire solo e.c.t.).On breakdown or clean parts you could add some.Little interludes between riffs.

Its a CREATIVE effect as many effects are.Just use it at your discretion...I can't tell you(nor can anyone else)EVERYWHERE its use is good.

Make a riff. Then play the riff with delay. You are going to have to play around with the delay alot before you find the right sound for the riff.

for me, delay is one of my favorite effects. it can make you sound like several guitarist at once, and it can also fatten up your sound alot. I love playing around with delay for clean stuff. it can make a simple riff sound very complicated. I also like setting the delay time down close to as far as it will go and setting the feedback to around 5-10% when playing chunky distorted rythme riffs. it adds a little extra metal/chunky sound to it. Delay can be awsome and add WAY more than you ever expected to you overall sound, IF you're patient enough to play around with it.