Mutt,
I spend most of my time at 500' or less so I guess I don't pay much attention to if there is a temp inversion. Tell you what, I'll look out for it and let you know next time I see one
Mind you, I don't know where the base gets their TAFs from but they do make us laugh at times they are so screwed up. I think the Wx guessers at KKIA have more of an idea as to what is going on.
Cheers