New xl egg fire ring and old conveggtor?

Here are some notes direct from Ceramic Grill Store site. You will probably never find better information or service. If you have more questions shoot Tom an email at CGS.
https://ceramicgrillstore.com/collections/xl-big-green-egg-accessories/products/xl-woo-ring-xl-big-green-egg

Slkegger said:

Thanks. I have been to the CGS website and have seen that. My issue is the new fire ring is flat and only the hight of the lower notches so its over 4 inches to felt line and the current woo is only 2.5 inches and the round stone sits so low  you can't put lump higher than the fire box to get over 300f.

The XL has gone through many design changes over the years.
I would first check with your dealer and see what they have as floor model compared to yours.
The first XL had a taller fire box and a plate setter with very short legs. There was not enough room for drip pan and radiant heat from PS would cook your food from the bottom. So they shortened the fire box and extended the legs on next generation. But it was still stumpy PS compared to other models. You might have something mismatched now. Later on they redesigned the XL dome to better match the Large Egg.
The fire ring has changed enough times that I can’t recall all the changes.lol