I have read anywhere from sternum to chin to mid-face height as recommendations. I'm taking my 5 year 4 month old son today to get new boots for the coming season. Last year he skied on 87cm skis which currently come up to his sternum area. Should I also trade in his skis for skis that are chin height or mid-face height? We're in a trade-up program so the cost wouldn't be too high (probably about $60-70 bucks) for the skis. My primary concern is what the "correct" length is for him and my secondary concern is whether his current skis deviate enough from that length to warrant the moderate additional expenditure.
In terms of ability, his first time out this year (this coming Saturday) will probably be his tenth day on skis. He could balance on skis right from the beginning 2 years ago and can control himself through the cones. He goes up the chairlift but hasn't yet been off beginner runs. On steeper sections of beginner runs, I still feel the need to hold on to him so he doesn't build up to an uncontrollable level of speed. Most of the time, though, he can happily ski by himself. I also expect a pretty sizeable improvement this year simply because he's 25% older and stronger. He'll probably ski 10 days this year.
Any thoughts would be appreciated.