There is a dude over on youtube and he has the sound NAILED!
http://www.youtube.com/watch?v=9VGEsl5CxMg&feature=related
he uses a TimeFactor and a ModFactor.
I was chatting with him over on another forum (TDPRI) and he is a really nice guy.
you could drop him a PM to see if he will share his settings, without the Edge or his guitar techtelling you… I think this guys is your best bet. Watch some of his vids, he has it nailed and he is in a U2 tribute band. I must keep an eye out to see if they play near me.
Cheers
BMF
