“As someone who has climbed mountains, I’ve had to improve the grip on the bottom of a shoe or two,” Michael Sawyer of UltimateKilimanjaro.com says with a laugh. “Just take a rock, nail file or ...

This month we’ve learned that every type of grip is a bit different. We’ve worked on crush grip, support grip, pinch grip and open hand grip. Now let’s look at something that’s a bit of an oddball: ...