The new Drake II and the Carlyle II work very well.
No worries about going to 1.28 with them.
The bowl should not move. If the floor is not level, it needs to be shimmed before the nuts are snugged down.
The the bowl gets caulked to the floor.
We leave a little out at the back, inspectors instructions in Washington.
In Arizona, they do a 360.
Shimming a bowl.