I made a similar trasnsition going from a AeroStar to a 4 Star 40. I would suggest having your instructor set your TX on low rates, take off for you as a tail dragger is quite a bit different. Once your in the air, it flies similar to a trainer, although the 4 Star is alot more responsive. Assuming your comfortable with your trainer, you will probably be able to adjust, and fly it without any problems. Other than quicker responses, the biggest difference I noticed was the 4 Star is it's tougher to land. You almost have to force it down, which results in "bouncy" landings.

Good luck and happy flying,
Jr