Counting / The Strip

Couple of questions:

1) On the Vegas Strip, I'm curious to know what the "usual" minimum bet is where you can get good rules on a 6 deck game (dealer stands on soft 17, double after split, surrender). We talking $15, $25, or higher?

2) Also, I've been working with Wong's Professional Blackjack for a couple of months, and I've got all the charts I think are relevant memorized (as they're starting to become part of my working memory), except for Surrender. In regards to my first question, at the Vegas Strip casinos with good rules, what is offered most, late or early Surrender? I need to learn the Surrender numbers, but don't know which chart to go with.