I fly 100-150hrs/year and the bigger part of that is in the UK. The number of instances where I see shapes that need plotting is in low single digits per year. In 2010, not yet.
Not many complex shapes, but figuring out
any lat/log is error-prone for me. I've got less than 500 hours total, and fly much less than you. I'm sure that you don't make as many mistakes as I do.
You should not actually read dross like that, never mind plot it.
I defer to your wisdom, but for me, I need to read pretty much everything to figure out whether or not it's dross.
transponder codes allocated by General Hooton
I think he's a Squadron Leader. Don't know what's happened to the poor chap, but his Notam seems to have disappeard. I'll miss his transponder codes.
More seriously, I think a graphical map-based presentation is a great dross filter. I know when I read 9 pages of cra... I mean Notams (yes: a narrow route brief today would have been 9 pages according the my browser's print preview), if I skip-read over the dross, there's a good chance I'll miss something I should have read. You're probably better at it than me. But why make it hard for pilots? Several of those that have done map presentations have said how relatively cheap and easy it would be.