Here I will utilize the reason I think the Internet is so useful...to protect consumers. The Badass III is the most poorly designed replacement bridge I've come across. I would not recommend it as replacement for an American Jazz (3 screw). Here are the problems I've run across. 1. The saddles are so huge, that you are limited to medium high action unless you grind down the bottoms of the saddles. 2. The grooves are a joke. They aren't cut deep enough, so your strings WILL pop out. You can try to file them, but you will go through many files. 3. The saddles are misaligned from standard Fender pole pieces. No matter what you do, you'll get a severe "break" in the string before the saddle to get them to align right. To really get it right, you have to move the bridge (redrill, etc.), but then you will negate through body stringing. 4. Leo Q. customer service does NOT return emails. Just try to save you the money.