Steve Mike's advise is excellent. I flew the 2 meter Pioron version of the Finesse in 2002 and it's about the truest plane I have ever flown. The plane is best suited for the larger faster flying style that was done a few years ago and is still done today by at least half the competitors. If you are still doubting if the plane is good enough to compete than consider a newer design. The price of pattern is dropping all the time with excellent ARF's available such as the Arrestti 3 and the Icepoint for less than $500 each.
Bottom line is at the lower levels of pattern practice and skill is what makes the biggest difference. Mike