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It should be pretty tight but removable, if it spins easily you could add more gasket materiel to tighten https://www.amazon.com/onlyfire-Gasket-Replacement-Adhesive-Classic/dp/B06XR3XHZH/ref=sr_1_15?ie=UTF8&qid=1544810249&sr=8-15&keywords=kamado+joe+gasket

If you have a place to hang and wire it this motion LED light is awesome https://www.amazon.com/gp/product/B01MUBBGAS/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

As long as it meets these dimensions it should

I really like Blue's Hog sauce but I do agree its a little thick and sweet, I thin it out with apple cider vinegar and its my go to for Chicken & Ribs, I never tried it on Pulled pork

Thats really weird, Does the SS top fit inside

My Classic and Big Joe are also 5 years old and both have the new firebox, maybe they sent you one for the Big Joe, Does it have 6 sections or 5?

Personally I like the Kamado Joe C.I griddle because it cleans so easy, You just scrape it, wipe it and spray with oil and put it away for the next time you need it, Kamado Joe also has a Soap stone that is even easier to maintain but it is fragile.

I second what fbov said

You can do a lot with 2 levels but if you really need three, Ceramic Grill store sales a rig that allows for 3 level cooking on the Classic & Big Joe

Here is a video that might help

Looking at your pictures it appears the hinge is not fully closed, You should of installed it with the space and nut on the spring, That keeps the hinge in the fully closed position, Did you keep it on when installing?

Mine connects with Bluetooth from inside my home know problem even with the dome closed and that is about 20 feet. And the way I do it, as I said in my other post. I connect with my iPad with bluetooth and then bridge it to my Iphone via wifi and you can monitor your cook from anywhere while connected to the internet

I have had mine for over a year and it has not failed me once, Its accurate and I love the fact you can check status on a Alexa device, also if you have 2 devices, one can be near the grill connected by BT and the other will hook up via your home wifi and you can monitor cooks on the road if you have leave for a while

This is what the site says, Metal parts have a 5 year warranty and yes gaskets are 1 year

I have the divider and it fits in between the grates of the basket so im pretty confident it would work, my only concern would be is the grate your using stable? or does it slide around