Excerpt: Despite the price for what it is, I recommend that anyone who shoots in the winter using a Gitzo monopod to have one in their bag. It doubles as a little grip when the conditions get icy. I really like the extra stability it provides in sand as well.
Excerpt: To prevent the monopod from slipping in the field this is more effective than a short spike or the standard rubber foot. Of course the problem of rotation remains. The price is too high; the spike is not even delivered with a protective cap (unlike the identical spikes for tripods)!
Summary: Improves the versatility of the monopod because it allows the short spike to be permanently available. The rubber foot encases it for normal use. I also have the longer spike which works very well in soft ground.The short spike should be standard not an accessory hence only 4 stars
Pros: Compact, Good Footing, Lightweight, Locks In Tight
Summary: This is a really useful accessory - and in some conditions it's pretty essential. All the more pity, then, that Gitzo doesn't supply it as part of the original monopod purchase!Mine stays fitted to the monopod most of the time.