Some 36 years ago, when I first started in ATC as a military controller, it was quite common to use one or two degree heading changes during a PAR or SRA. Eight years later, whilst under training for a civil licence, an instructor told me to only use five or ten degree heading changes, and like a good trainee, I didn't argue. Now we are told that headings ending in zero are bad news, and even those ending in five may cause confusion!
I'm a little concerned about where all this is leading - will we soon be left with just cardinal headings?
