These are the very first cuts made with a brand new Freud SBOX8 Box Joint Blade Set. Bad, bad, bad!
The gap on the right side measures a little more than 1/32" deeper than the left. This is a 3/8" cut.
The blade set consists of two blades capable of cutting either 1/4" or 3/8" joints.
This is clearly unacceptable for something that should create flawless cuts. I'll return it.