Black Diamond Fusion Ice Tool Review
For hooking, on rock or ice, the primary and secondary grips keep the pull on the pick constant. grab the secondary grip and the tool won't shift on its placement. On ice, I used the thin Laser pick and by the second outing had the swing dialed and was able to easily get good sticks even in sub-zero ice. For pillar ice where I might want a leashless tool, I'd choose the Fusion over the BD Cobra because the Fusion is the easier of the two to hold onto, and for modern mixed (largely dry tooling) it's the new Fusion all the way.
I like this tool, but deducted a star and gave it four instead of five because the grip isn't as sticky as I'd like, and the main pommel is slick and can skate when it is pressed against the rock. There are time, too, when I wish for a third, higher pinky rest, such as the one on the Petzl Ergo.