Don't be surprised but I started out with weight of 100 and I was once fined for littering due to misheard release cargo.
I switched it off totally
Regarding, voice replies using the TTS,
English replies:
http://www.youtube.com/watch?v=8cadUPoYx18
I also made one in Japanese.
http://www.youtube.com/watch?v=6Sf6UsMLlQY
http://www.youtube.com/watch?v=2t5XwrTQXec (More exaggerated replies.)
I trained it twice at first, but using a direct to mouth mic than open-air is a lot more effective so after switching over, i did 5 training sessions continuous as i think it will take quite a few sessions for my signal patterns to converge to the new mic.
for just in case, I started doing one session before I start my game.
And now, i have set it as low as weight of 25 and it still understands me.
EDIT: Forget to add in, the conditional statements seems to be in the beta version only.