The first bite? Carter Mazur hated it. Lose in the NCHC Frozen Faceoff semis. Kiss another trophy goodbye. Then he remembered the aftertaste. And how sweet it felt at this time a year ago. “Yeah, I feel like it’s the exact same (vibe) as last (March),” Mazur, the DU Pioneers’ top goal-scorer, said earlier this week at Magness Arena in advance of the 30-9 Pios’ first test in the NCAA men’s hockey regionals, Thursday at 3:30 p.m.