xarkon
Experienced
I just finished reading the article "Designer Delays" in the May 2012 issue of Sound on Sound. While it's probably beginner-level material for those experienced in using the different Axe delay blocks, I found it interesting enough to bookmark for experimentation. It's written from the perspective of using a DAW, but I think many of the ideas mentioned in the article should work in the Axe. Anyway, here's the link:
https://www.soundonsound.com/techniques/creating-using-custom-delay-effects
https://www.soundonsound.com/techniques/creating-using-custom-delay-effects