When I had my J-220 delivered last week, there was a label on the wrapping indicating only one side was safe to rest on.
This caused a problem as the dimensions of the tub are 78" by 84", with the equipment bay on one of the 84" sides.
I had an old tub that had a lip-mounted gazebo that I had detached and jacked up on blocks so the new tub could pass under.
The site inspector and I had planned on having the delivery crew use the 84" side opposite the equipment bay, but the label was on one of the 78" sides, which meant the tub would be 84" high going under, and I had not raised up the gazebo sufficiently for the tub to pass through.
This delayed installation by a day while I got the gazebo jacked up more to allow for the extra clearance. In the end, they had to lay it flat on its bottom and slide under the rails (a mere 38" above the deck surface!!) - just barely clearing the rails and the blocks that were holding up the corners. That was a tense moment . . .
Moral of the story - be sure your site inspector has checked and knows precisely which side(s) are OK to rest on!!
The good news is we finished building the new base for the gazebo yesterday, and it looks great! Let's hope this tub lasts a good long while, though, as it would be a royal pain to remove/replace.