In reply to UKC Articles:
I went to John for some coaching earlier this year, I have been climbing for nearly 30 years and have a recurrent dodgy elbow (only ever left, never right) which I suspected may be caused by bad technique / movement patterns.
Physio would sort the flareups but did nothing to address the underlying cause, so it would go away for a while and then return.
The session with John was really useful, he's an excellent coach, and gave me loads of useful pointers to improve my technique and avoid further injury.
In my situation I now have 30 years worth of bad engrams to unlearn, which is really hard work. So I would say to younger climbers who are thinking of getting some coaching "do it now, don't leave it as long as I did" It's much easier to develop good habits in the first place, than to un-learn bad ones!
Paul