Torrential Tribute vs Sacred Omega

Stupid questions but with Torrential going to 2, i want to make sure I understand how to use it properly.

The main question I have is,
Can I activate Sacred Omega's effect in response to the activation of Torrential Tribute? If so, are there times when I would be unable to do so?


A few instances this may come up.

I have sacred omega on the field.
opp summons a monster and activates torrential tribute.
Would I be able to activate Omega's eff?

second,
If I summon Omega and my opp activates Torrential tribute, would I be able to activate Omega's eff in response to it?


and
If I summon omega and activate Torrential tribute on my own summon, can I still use Omega's eff to gain the immunity to spell/traps?

Sacred Omega (Quick-effect) and TT (normal trap) are both Spell Speed 2 so you can chain Omega's eff to TT.

1st case : Yes, you can.
2nd case : same.
3rd case : not sure, in this case after activating TT, the prio is shifted to your opp to see if he can respond to it or no, so you have to wait for his answer.

Yes for all three cases

1&2) you can chain omega to torrent.
3) you must first wait for opp either to respond your TT or pass prio back to you. if your opp pass his prio or chain TT with SS2 eff (except few like super poly), then you can chain omega as CL3. however if your opp chain TT with a SS3, you won't be able to chain omega to it.