I must say, compared with my cobbled together efforts, there are far more accomplished entries about. I've as much chance as winning anything as spotting a squadron ot Tamworths zipping up the estuary at low level!
I'm just having a bash for the fun of it and as a personal challenge to complete something that looks half right.
Of course, part of it would be half left, but we can leave that to Pedants Weekly....
As an aside, my subscription copy of BRM hasn't arrived yet. It'll probably turn up tomorrow, on Friday 13th and put the complete mockers on everything!