The A&A aluminum drum in my car has hundreds of passes on it and looks like it's hardly been used when I take it apart to check things over in the off season.
I change the trans fluid every 40 runs with Dextron 3 and don't ever have the sludge shown in the picture above.
I run a smooth red band from A&A as well and run a Tranzact valve body with a clean 2-3 shift which may help prevent premature drum wear.