Upon closer measuring, I am not crazy...they actually sent me a 2306 - 1 1/16" cutting length instead of 1 1/2"! The plastic sleeve was smudged so I couldn't see the number - making me wonder if the seller wasn't hoping to pull a fast one.
I suppose this is what I get for ordering on amazon instead of Rockler or the like. At least they'll exchange it for free. Hopefully, the second one is the right one!