I made the switch from a 18 lithium vapor to a 19 senate pro (same shape) have been super happy.
Bought the vapor 3 seasons ago when I started skiing the course. I really liked it, but found I needed to be absolutely 100% there mentally and physically to have a good set.
The Senate felt way smoother, and equally as fast (vapor has an extra turbo level that I felt on occassion). In half a season since switching to the Senate pro, my PB has gone from running 15off @ 34mpg to 3 @ 28off -34mph.
Another guy I ski with, felt very similar and grabbed a 2020 senate pro over a vapor last season too!