If you take your groomer skiing seriously, you'll notice the difference when you step up to a hard-soled plug boot in a performance narrow last. A good place to start is the Atomic Redster Club Sport 110 Ski Boots. A legit 110 flex (feels like a 120+ recreational boot) and Atomic's race-ready stance with plenty of forward lean and a 3mm integrated lift set you up for success on harder snow. 

• Flex: 110
• Last: 96mm