Last summer after being out of course skiing for a lot of years I was trying to run the course on my Senate C at 30 mph without a lot of success.
Around September 1, I bought a Katana and was running the course successfully at 24 mph. (Up to 27 mph now).
That's the great thing about the Katana - you can ski 24 mph and it won't wear you out like higher performance skis.
Also, it keeps me from doing stupid stuff like getting too far forward on the ski, as I am prone to do.