Yes, this works. So, when you first get TT, it's best to download the first update automatically. After that, the updates can be disabled as you state. Later (maybe before filing the return), you can do a manual update, then re-check your numbers. Then, I prefer to disable Updates after I file my return(s) -- I don't want different "rules" after I've filed, since Intuit might correct an error in their code, and I won't be able to prove that my Return (created with their old rules) was correct at the time of filing.
