hi lowpost
that makes sense, think thats why the pros go to the range before starting to see what game they have and to judge how much fade or draw there getting on that day. by the time they get to the first tee there body's have played 4 or 5 holes on the range. i have said i would try doing the same but like you when i get to the car park i seem to forget and end up on the tee swing two clubs to warm up.
cheers
bill