Yeah I kind of gathered tosas aren't necessarily the kind of dog to be feverishly dragging on the lead after every little cocker spaniel they see.
And that's good news about your bulldog being in good shape. I have a feeling they're not all as bad as we like to make out. This thread might show that to be the case.
Thanks for your input. Feel free to come back in with notes about your dogs as you think of them, the more pointless little details the better honestly. I hope for this thread to become a comprehensive reference of testimonies. :)