Leadwakes is $50 per 50lb bag and shipped to your house via USPS. I've attached a link so you can see the bags, just scroll down about halfway down the thread and you'll see 2 pics of the black canvas bag. In the thread they also include the email address to Leadwakes.
http://www.wakeworld.com/forum/showthread.php?t=789420Don't use the wedge on goofy side, use it on regular side. I've never had an issue with a washy wave on my previous A22 but the goofy side was a bit cleaner than regular which is the norm for Malibu and Axis. Also, the 900 or 1100 PnP rear sack is much better than the 750. My buddy had 1100's in his A22 and the wave was much better than my A22 with 750's