Yes I did read the links.
If my cat had to go to a bording house (which more than likely I would leave my cat with my sister if I couldn't take him with me) I'm sure that he would be able to go in a liter box. When I brought him home, if he no longer went on the toilet then I would have to go back to the liter box. The process of training him has been a little sticky and I would not be interested in doing it again.
It is true that the toilet seat training process is a little stressful for him but not one that has him depressed or has altered his behavior. If I see anything change in him which is due to stress over the training I will stop. I'm not out to make his life difficult.
My problem with the liter is the tracking around the house. And I was told that liter is not good for pregnant women. Then I'm concerned that once the baby can walk they'll be curious to go into the liter box.
I know it's unnatural because they can't dig but I am going to stick it out a little longer. I won't push him if he refuses to do it but I won't know until I've gone through all the steps in the training.
I'll keep you posted and thanks for the concern. Timmy thanks you too.