Originally Posted by 21Rouge
Any advice on how to best introduce one to the other to have the best chance of success?
Very slowly! Keep them completely separate for a while (kitten should have his own room with all the fixins), and when they do eventually meet, make sure your older kitty has his own space where he can escape from harassment by the young whipper-snapper. Don't leave them together unattended until you can be absolutely sure they will get along. Feliway diffusers might also help. Here is a good article describing the ideal introduction process: http://www.wvcats.com/integrating_kittens_with_cats.htm