Stitched this up on my Featherweight (!) last night. I had to rip it out a couple times and darned if there isn't still a mistake in there! When I put it away last night I said to myself -it's fine, you can live with it.
Well, no I can't. See there are two places where identical squares are either adjacent or touching. So tonight I rip it out again and hopefully the material can stand it one more time!