I can only speak from personal experience...
Been with over 17 chicas during my last two trips over the last three months. 90% of them gave me BBBJ. Roughly 75% I ate their box. Had one, maybe two (not sure of second, memory is clowded from being blasted) really dumb moves on my part regarding sex (though the lapses of judgement were extremely brief, my actions were dumb and dangerous all the same). Just got my lab results in from the doctor today...
clean as a whistle.
Play with fire, be willing to get burned, I say. It doesn't matter how high the STD rates or HIV rates are, all it takes is that one wrong choice with that one wrong person. You either take the risk or you don't. Based on rates of diseases among the puta population and you taking all precautions, you may only have a 1% chance of contracting anything, but you just may be the lucky sonufabitch to hit the jackpot that day and win yourself a gift that keeps on giving!
IMHO, stats and shit just provide a false sense of security (or paranoia, depending on how the stats are leaning). Bottom line, you are destined to have either a 0% chance of getting something from your mongering ways, or 100% chance of catching a lovely sexual souveniere. There's no in-between here. The only downside is that you don't know which one of these percentage brackets you were in until after the fact. As is most things in life, hindsight is 20/20.
Just consistently play game as safe as possible, regardless of where you are at or what the STD rate is, and you'll be fine. Of course, you could always just not play at all, but c'mon, THAT'S NO FUN!!
Ruffnutz