Excellent info, rafowell. Thanks for taking the time and effort to educate us.

I've been wondering something that maybe you know the answer to...does a larger signal mirror mean a larger reflection dot or a brighter one?

And if it's a brighter one, then how would the reflection of a larger plastic mirror, say 3"X5", compare with a smaller 2"X3" glass mirror?

I apologize if the answers are obvious.