OK, just about to upload it.
I found it better than Symphony No.2, with quieter passages, and even a bird-song type passage!
In fact I found in listening to it there was a very strong programme coming through. What I heard was one continuous movement with opening and closing fastish stretches of music (though a quiet end to the whole piece) and in the middle a fascinating mixture of a slow movement and scherzo, with slow passages interspersed with scherzo-like flurries.
To my mind the symphony was a description of thundery weather, with two main thunderstorms (first and last movements) and lull in between with squalls and scuds and times when the storm seemed to be dying out entirely (bird-song).
it would be amusing if the inspiration was something completely different.
I can ask John, if you like ;D
Thanks for the upload :)