A good point, 2 sheds, and a sensible amendment.
I've never quite worked out why "to", though outlawed for flight levels, is still used with altitudes these days. While I can just about imagine someone misinterpreting "climb 4000 ft" as an invitation to add 4000 ft to their current altitude, I can't imagine "climb altitude 4000 ft" being misinterpreted any more than "climb flight level 40".
Of course there's always a possibility that, when given the instruction "Taxi holding point A", some bright spark will get out, attach a rope to the holding point sign and tow it across the airfield...
