Mensaboy, regarding Rule#6...
I have noticed over the last six months or so ATC in a number of countries are using the word 'to' in their altitude clearances.
I thought that had been ditched years ago in the aftermath of an accident/incident caused by a "descend two two thousand" being interepreted as "descend to 2 thousand" type of thing.
So incensed, I was forced to actually look it up in the ICAO phraseology - and it is according to them - correct.
The wheel keeps turning...