I've tested the GriGri+ on an extended climbing trip through Yosemite, Red Rocks, Zion, Indian Creek, etc. and really like what Petzl has done.
Review: Petzl GriGri+ - Black Sheep Adventure Sports
Petzl GriGri+ Review
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Review: Petzl GriGri+ - Black Sheep Adventure Sports
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Rock & Ice Archives - Page 5 of 8 - Black Sheep Adventure Sports
Review: Petzl GriGri+ - Black Sheep Adventure Sports
Reviews Archives - Black Sheep Adventure Sports
Reviews Archives - Black Sheep Adventure Sports