After dusting off some material I found out what you already pointed out which is that 1/2 the air distance belongs to the TOR.
In this case it my example was inapropriate. I have always assumed that the field limited weight was the smaller of the TODA limited and the ASDA limited weight.
At least I have an excuse to go through all that stuff once more:
Love and peace.
PS: I wonder what DOB I put on my profile which has induced you to think I could be your son. I'll check that too.
