I have two of these in max weight, 2020 tour series swirly z plastic. *Keep in mind that this plastic gives makes the disc more overstable than an ESP or Big Z plastic. 9 speed discs have always been the go-to fairway driver for me with nothing between them and my buzzz's. I have grown to appreciate these a lot, though. They fly super straight, with a slight turn and a dependable fade. (my two discs of all the same specs do have slightly different stabilities though, so yours might fly different than mine.) Overall, if you need to push these out past your midranges with more right to left movement, but still less than your 9 or 10 speeds, these fit the bill nicely. These also have some sneaky glide, and can sometimes end up only about 20 feet short of my undertakers. Great disc for people building their arm speed! 

169g Elite Z:

This is a fine disc, but it has never really found a home in my bag. Maybe I got a funky one, but I can't really throw it flat or with any type of anny release without it turning or rolling over. Thrown on a slight hyzer it will flip over nicely and has pretty good glide. Overall feels 1 dimensional to me and i have other discs in its speed class that can do more.