This is really what I put in place a few months ago. The only difference this time around is that I’ve built a PVC and wooden dowel structure to hold the antennas a little higher and farther apart (six feet rather than the previous four feet).
You can get a glimpse of the reasons I’m using 10 degree elevation and vertical polarization at LEO Azimuth Tracking. They note that if you’re using fixed elevation to never go higher than 15 degrees. It’s a well written review of all the factors at play.
Hope to work you on the satellites.