Thanks guys
What can I say? Thanks to all you folks for taking the time to reply - I really appreciate it.
I think I will try a few more before I buy, but I think you're all telling me that I shouldn't expect too much without spending a lot of time setting it up (or getting someone who knows what they're doing to do it for me). I certainly feel a bit better about the test ride.
Although I am a bit 'Xaus-like' in proportions (though obviously not in riding ability), I'm not going to let this put me off - there's always surgery.
I need to own one of these beauties - I'll keep you posted.
Thanks again,
Col.