PP,
If you enjoy endless discussions of the semantics of vast volumes of regulations then flying, flying clubs and flying bulletin boards will unfortunately provide limitless scope for that.
If you're one of those eccentrics who just want to get into the air and go to interesting places then use Airbus38's excellent script above and don't get too hung up on the minutiae of CAP 413. Everyone else on the frequency will be most grateful!
I'm just someone trying to get through the radio practical exam......