JTP13 - sorry, I didn't mean to start a flame war. I've been stung in a few trolls over the years and it's embarrassing. Your questions are perfectly legit for someone just trying to figure things out, and I personally blasted someone here a few weeks back for asking the same sort of questions after they purchased an expensive motorhome.
But as Spink said, they would also fit into the troll category. Some people with more time on their hands than is reasonable like to roam around various web sites and just make trouble. I apologize for thinking you were one of them.
:o