In my search for pre syndication strips of The Boondocks i found a handful that were published in Source Magazine. This happened after Aaron pulled the strip from The Diamondback.
You can actually see the characters now, they are not amorphous blobs.
The Boondocks was a daily syndicated comic strip written and originally drawn by Aaron McGruder that ran from 1996 to 2006. Created by McGruder in 1996 for Hitlist.com, an early online music website, it was printed in the monthly hip hop magazine The Source in 1997. As it gained popularity, the comic strip was picked up by the Universal Press Syndicate and made its national debut on April 19, 1999. A popular and controversial strip, The Boondocks satirizes African-American culture and American politics as seen through the eyes of young African American radical Huey Freeman. McGruder's syndicate said it was among the biggest launches the company ever had.