If I treeform right in front of him, our clients are synced (we see the same thing). If I, treeformed, stay put, and he zones out and in, he sees a half-sunk human again.
I tested this same procedure with wolf form. I become a very small wolf on his screen after he zones in and wolf form is already active (on a halfling). I don't have a guise so I can't test that.
[You must be logged in to view images. Log in or Register.]