Look what we found...

Had to go shopping with the boss (I was driving) to spend her Kohl's cash (if you don't know what that is, it's the "free" money from shopping at Kohl's that is like a crack addiction), and while she was shopping, I went to the cooking section to "browse". Like any 3 year old, I had to touch and examine everything, to see if I "needed" it or not (no I didn't taste anything). I did pick up a round pizza crisper pan (large pizza pan with holes in it) to cook Papa Murphy's pizza on the cookers, and I also found these
Which looks like this on the YS640 upper shelf
And 2 of them look like this on the lower grates
Notice that I had one with the little leg nubs up and one with them down. To use them on my cooker, since I have the expanded metal lower grates, I will use them with the leg nubs in the up position, so I can put them where ever I want, instead of having to find where the leg nubs fit down into the grates, and because of this
If you have the round bar grates, you should not have an issue with this, but, I will state that I am not 100% sure, since I have not tested this. The door on my YS640 does close all the way, but the drip rail does come in contact with these grates.
Which looks like this on the YS640 upper shelf
And 2 of them look like this on the lower grates
Notice that I had one with the little leg nubs up and one with them down. To use them on my cooker, since I have the expanded metal lower grates, I will use them with the leg nubs in the up position, so I can put them where ever I want, instead of having to find where the leg nubs fit down into the grates, and because of this
If you have the round bar grates, you should not have an issue with this, but, I will state that I am not 100% sure, since I have not tested this. The door on my YS640 does close all the way, but the drip rail does come in contact with these grates.