just looked at this article, and while its a bit of a reference perhaps, its just plain goofy that he doesnt say what he weighs, and or mentions if his "experimenting" to get to his recommendations on his chart are only with him (at an unknown body weight) or with some gear also (unknown weight)
The guy who wrote the article weighs 78kg pretty much the same as me, he had his weight listed in the "How much does weight slow you down article"