CRAFTSBURY, Vermont — If anyone can attest to the fact that feeling off during a qualifier is no reason to count oneself out for the heats, it’s Dartmouth senior Eric Packer. Despite having “blown up a bit” in the classic sprint prelim at SuperTour Finals on Tuesday, qualifying in 16th, he didn’t throw up his hands in defeat. Instead, he went on to win the thing outright, beating SuperTour regulars and US Ski Team members...