Thanks for the reply. Spice and tone is my newbie way of saying effects :)
I did get the yellow fall doing some echo/ delay and got it lasting a while but the sound is so quiet it's barely audible.
The coral verb II doesn't seem to allow me to turn off wet/dry in the mix dial so don't think that's the issue. But again, if it is making any effect it's so quiet it's barely noticeable.
Maybe it is working but the volume is messed up?!?