Pro is Stylus use only, touch just has the added use of using you finger to do actions on the screen. But with the touch if you leave the option enabled you must wear a protector strap that goes around you pinky finger and wraps around your wrist so that your skin doesn't trigger the screen when you want to use the pen and rest your wrist on the screen. Otherwise exact same display.
one of my guys training in ZZ Italy tried the touch screen he didnt love it. but i have been thinking of getting one also but the MJ glove is a bit off putting.
I bought the 16 inch huion at Black Friday and have been slowly getting used to it. Takes a while to get used to. More precise than a mouse. I may review it when the end of year rush finishes.