My pizza attachment on my DB prime doesn't seem to fit as well as the DB Choice did.  Does yours sit up a little where the tabs don't go into the rail?

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Have you called GMG support? They are very responsive. They may either know the answer or be interested in what you found.

The top of my pizza oven came damaged. I called and they sent me a new one since they could not send just lids.

Mine is on the original Daniel Boone and fits fine like yours did.

I called them and emailed them pictures.  They said that as long as it sits flush on the bottom over the firepot then it's ok.  I was wondering if others are the same fit?  The grill doen't seem like anything is wrong nor does the attachment.