Try with a mono source panned hard one direction and the delay panned hard in the other direction.

Thanks for all the tips and will try some of these on my recordings.  Plus great mention of Tony Banks in there!  I actually prefer the way older recordings capture stereo image and somehow sound special because the effect sits out there special in and around the other more simple instruments.  On many modern recordings there is so much going on that the sounds all get mixed in together.

Back in the day... I'd listen to a track and then there'd be a sudden brilliant sound...be it a keyboard / guitar or vocal effect and it would floor me.

Cheers all.

Bob Bones and Noynekker - thanks for suggesting the ms specs. Always good to have a solid point of reference to the techniques.

This is known as the Haas Trick, and was not invented by Helmut Haas, but just demonstrates the Haas Effect.    Pan a signal to one extreme, and a ghost copy (delayed by 1-35ms) to the other.  Changing the amount of delay gives different effects.
 
Roey Izhaki gives three examples of is use:
 
To fatten Sounds panned to extremes e.g. double tracked guitars
 
More realistic panning - our ears use amplitude, frequency and time differences to understand direction of a sound, pan pots only use amplitude.  The Haas trick adds time, and frequency if we EQ one channel.
 
As a panning alternative.