Barrie,
Out of the blue you raise a new concern. Now, you appear to be saying that Avast did not detect some infections. However, whereas your good wishes are worthless to Avast users the submission of those detections might be of help to some of us.
Please read my precise words without your unnecessary interpretation of them. They were:
Since you have not personally reported a single infection or FP you should have concluded the Avast engine is significantly better than "not bad" and that it did a perfect job for you.
Avast is exceptionally effective, as evidenced by independent tests. So I ask how many 100 thousand malwares do you have stored, how many you tested, and how many Avast failed to detect?
You have repeatedly stated what you want so please do not bother to regurgitate that view.
My regards