New grommet, different type of grommet. Some rigs do have a noticable lean to them. Sambooka has a KM with a good lean, my Old E leaned to one side as well (why as a lamp it RUFUSES to stay put
Unless the lean threatens to topple the whole rig, it may be wise to leave things be. The old saying, "If it ain't broke, don't fix it" thing.