Yes! I have an integrated Comando on one of my trout Spey rods and love it- it seems to fly a bit more true than a head/mono line plus it flat out rips!
+1 for the SA flat mono. For winter I use the 40# chartreuse stuff, for trout Spey I use the 20#. The 40# is amazingly limp even after 4 years of thrashing on it.
I must need to work on my casting as I only fish my two hander 99.9% of the time. I wonder if the casting geometry changes are more prone to tail wrap. I’m guessing they are.