I have flown Eurosports for years. The canards are used most of the time. I have them on a switch so that I can switch them off for fast low passes, as it is less twitchy like this. For take off I have them up about 5 degrees to help rotation. I do not use a different centre for landing but if you fly in a tight space then it would be a good idea, as you can settle into a higher alpha, and therefore slower approach.
Remeber, canards move in the opposite direction to your elevator, so up elevator means canard TE down.

John