As we get to the later regionals, and your 2nd regionals, I believe that most teams will have straight auto working, and a "Y" will be a huge advantage.
Week 1 we were 17/18 on the straight, we had a working "Y" but never had the need to actually use it. In the finals we were paired with the Bee's and they needed us to do the straight, as they were putting up two.
I imagine that we will not be paired with another 2 uber team... so the working Y will be a good asset.
After seeing the Bees, our lead mentor said we have to program a 3 uber tube auto, but not change the code at ALL.
