Thanks for the tips and advice so far chaps. I totally agree it doesn't matter what you are aiming at / actually hitting so long as it sa small group that gets smaller (hopefully!). But it's not that motivating compared to aiming at a target and hitting it .
Whilst I like the idea of a foresight raiser, it might be as easy to look for another rear sight.
Shame about Zooma! That would have been perfect.
I'm sure one will pop up.
Enjoy the sunny weekend all
Andy