Derek
I think you are right you should go on a spotting course, for your own peace of mind, if nothing else
But you will have to pick which one, HD or PC or CS? what spotters do you use at the moment?
Everyone on here uses different ones, or a combination of all, I do!!
I have recently done the Chem spec (advanced) one, but didnt get a lot out of it.
Ask on this or other forums, what people think is the best course?
They will all have different views, but something is better than nothing!!!!
Regards
Daryl