I haven't gotten mine yet, but I can compare the two and take pictures once I get it, since my stock pulley is sitting around.
Since you're the first one to notice it, I don't forsee it being a problem unless the belt wears down or skips.
$70 huh? Since Tim Grimes is selling it for $85, I figured it was gonna be pretty inexpensive, but on the other hand I know I'm getting the right thing, and hey, it's only $85 after all.
-John