I am no hardcore slalom "course" skier (I am struggling to make 15 off). However, I have both the HO TX Superlite and the Senate Graphite. One of my ski partners had the HO Coex.
At those speeds AND in the right hands, those skis are all exceptional in and out of the course. It is truly the Warrior and not the weapon. @Horton has reviews on the Senate, Senate Lithium and Coex/CX. You can watch manufacturer videos of guys (pros) ripping it up on those skis.
My impressions, couched with me being 6'4, 255lbs, 50 yrs old
TX Superlite: Very forgiving/stable and doesn't sink at 28mph. Plenty of room for me to grow. Trying to learn the course at slower speeds, truly a fast ski when in good body position. Not a ski you can "hook". Not a damp ski (it's a Superlite core). Widest of three.
Senate Graphite: Forgiving/stable, Turns great. Fast pretty much everywhere and I will never see it's potential. Fun out of the course at 34-36. A little damper than the Superlite series.
HO CX Superlite: From watching my partner ski, and having its wider big brother. This ski is fast, a little harder to get up on (narrower than other two), but turns faster. Again a very competent ski that would never see its potential in our boat.
I would say you could easily embrace any of the skis you mentioned, as they all have plenty to offer and are pretty tried and true winners.