Thank you gentlemen for your valuable input.
I suppose the question is settled and shall keep your comments had I ever have to justify my decision to an inquiry board.
I remember a fireman explaining that all runway foaming ever did was to help on a "psychological" level, I can see now he was right.
As a side note, I remember a MD87 landing at Geneva, Switzerland some years ago, with its nose gear in the well, came to halt with hardly a scratch and they did have the runway foamed.
