WilsonWatch series 1 vs series 2 center channel

Any users have any experience with the diff between these two Wilson center channels?
Although I'm not sure I would guess the similarities might be like the difference in Sophia 1 & 2's with the tweeter being the dif.
I believe the Series 2 has the same mid range drivers as the Sophia 2, but uses the Titanium tweeter of the Sasha, Max, etc. The Series 1 had a different mid, and I am not sure about the tweeter. It might have been a berylium like the current Sophia 2.

Hopefully someone answers this because I have wondered the same thing.