ORIGINAL: hezik
Don't use a 'practice plane', it's useless. Use your competition plane to practice with, as it's also the plane that you're going to be flying in competition.
You have a point and I do agree with you. However, it is not always possible to use your competition plane for practice due to time or space constraints. In which case it is better to fly a practice plane than not to fly at all. Just my 2 cents worth.....