Hmmm...wonder if there is an issue with only clamping on the one side. I did try to hold firmly to the jig, but that could have been lacking (picture with jig when I was cutting the lip that went into the groove
Actually thought I should cut an opening so I could feed thru a clamp, but was too focused on getting the top done. 😬🙄
I didn't get to the sanding today as I was trying to figure out the cross size. Not sure if I'll do an inlay or place on top. This was just some scrap wood to work out dimensions.