Thanks for the replies people.
The guitar is in dire need of a good setting up really, intonation is all out etc etc. I've had a read through of all the guides on here so might will give it a go myself.
I really don't play it regularly enough (my knackered old acoustic gets most of my attention) but would like to. I think perhaps if I upgraded the pickups (any recommendations?) and got it all perfectly set up I'd be more tempted to get it out of the case. It is a nice guitar and probably not worth selling for £400.
Thought a new guitar might provide some inspiration but it's kind of a rare looking RG, and has the edge bridge so I think I'll get it up to scratch.
The body is perfect but the fretboard could do with a good clean and some of the gold on the hardware has faded.
Thanks again, I'll continue to read the site!