Like I know what I am talking about :)
It sounds to me that things are working just fine. Your problems would be much worse if Toby wasn't being so good. I think if you feed them at the same time (maybe a little tuna) on the same plate....and play with them both at the same time, they will get used to bumping into each other.
Here I sit giving someone else advice when I have two cats that cannot even be in the same side of the house together!
That's another story!
I think you will have no problems beyond a little hissing.
By the way, cats have a sense of smell when they open their mouths....... and they do that often when there is something new around the house.....
:cool: :cool: :D :D :cool: :cool: