I will be at Vail for a week starting the 26th of January. The last time my wife and I took a group lesson there they said we are a solid level 7. I would like to improve my carving and maybe some moguls and powder if available. The lessons are expensive so a few good names would be appreciated. From experience, I have learned that some instructors are incredible skiers but are not as skilled at teaching skiing. Thank you so much in advance.