In reply to UKC Gear:
Thanks Toby, interesting review.
> My understanding is that friction between the rock and cams is not central to the holding power of cams, therefore the slimmer cams of the Dragons should not be a disadvantage in most placements but perhaps if you climb a lot on softer sandstone, then the greater friction and less pressure exerted by the wider Camalots cams might be desirable, at least psychologically.
> I hope the many excellent climbing engineers of UKC will weigh on once again on the friction and holding power issue in the thread below this review!
You are clearly not an engineer! As you hint, you need to rethink this section of the article as there are several factual errors. Perhaps fact-checking this section would have been wise?
> Using the manufacturers own weights...
Did you check this? As this seems one of the crucial differences between the units it would seem reasonable not to take manufacturer's figures for granted. Black Diamond Oz carabiners are heavier than the claimed weight for example.
http://www.supertopo.com/review/Black-Diamond-Oz