Usually I'm pretty good at these and rarely make a mistake. However, I've looked over my answers a few times and can't figure out where my error(s) occur(s).

They are both homozygous sabino, so their offspring will be SbSb, not Sbsb. That's an easy mistake to make, especially considering how many hetero to homo pairs there were in there.

AH! I was looking back and forth too quick. Thanks!