I've found this link:
ATTC Europe
Any experiences with such ATTC trainings?
I think if it works it's worth to do this course but I would prefer a few reliable information before investing money and time. The Skytest-Software is known as useful mean of preparation for ATC-Testings in Swiss, a friend of mine used it for his Skyguide (Swiss ATC), but don't know their relation to the flying group.
Happy Easter
