FYI Joel one of the first upgrades I'd reccomend is swapping the bed springs if it hasn't veen done yet, and at teh same time change from 4 screws to 3 using a kit like this:
[MEDIA=amazon]B08YYB57MD[/MEDIA]
They can probably be found cheaper now
The reason is its way easier to level w/ 3 knobs bc 3 points determines a plane, its easy to accidentally warp the bed w/ 4.