[robsterpaterson]

Thanks for the reply. The cable adjuster sits right tight to the passenger seat base and there's no way I'm getting at it with spanners. Might try seeing if it can be pulled forward a bit though. The expanders are now good as new, I'm happy they're not the issue as they're pivoting lovely and freely now after some TLC. Almost suspecting a binding cable but dubious as both sides played up at the same time - maybe the 'main' cable though. I'll probably try using the handbrake a few times anything I know I've got time to strip it all beck out again. Once I get to the bottom of this I may go for the manual adjusters.