Thanks Old trials fanatic and thanks to everyone who has replied.
Most informative and appreciated, thank you all.
In answer to your question Old trials fanatic, I haven't done a trial as yet but I know I want a friendly and enjoyable atmosphere and I want to enjoy my riding.
I suspect these are the main targets for me and I equally suspect I'm going to prefer easy sections.
Maybe I can relate this to trail riding in that I preferred a leisurely bimble with no awkward and difficult bits whereas most around me liked big challenges of 3 foot deep bogs and the like.
I don't do fear, I'm not keen on pain and I'm not bothered about winning at all.
I suppose I would like to improve over time.
I enjoy a bit of bike maintenance and tinkering but I'm not a mechanic.
I'm not concerned about a twinshock going up in value and I think I'd rather they didn't.
And I'm taking my time before deciding.
Thanks again everyone.