I'm sure you've already used shift-return to raise your seat hight so that you can actually see where your going.
Tri Star is like all the other tail draggers you just have to be very gentle with the controls when trying to taxi,take off,land. Also keep in mind the delay in response otherwise you'll find yourself over correcting all the time.
Just takes practice but the Tri Star along with lots of other great aircraft make for a nice break from the heavy iron. Plus it's very rewarding especially when attempting long flights with realistic weather.

...-Gixer