Exactly, gonk and a great point! Our two experiences serve to show how valuable the SMS-1 can be to even those who don't "see" any problem with their current setups. Unless one is severely anal about it (no comments, peanut gallery ) one is not going to be able to cover all possible parameters within reason and the SMS-1 is great at pointing out things that are easily correctable "if only we knew...."

Just goes to show that there is always room for improvement in things HT.