I've recently changed employers and I think the guys here are messing with my head.
As long as I have been flying, I was taught that you should only change altimeter settings from QNH to 1013 and vise versa when either passing the transition altitude (going up) or transition level (going down).
The guys here say (with no specific procedure written down, mind you), you change the the altimeter setting when ATC clears you to a FL (going up) and an altitude (going down), well before crossing the transition layer. Their reasoning, it is more logical.

One guys logic is anothers insanity
Are the procedures different around the world?????