Alright, here is a thought I had in regards to one handing a chainsaw. First let me start by saying that one handing is a technique..plain and simple. It is riskier that two handing, but it is still a viable way of cutting. You have to be aware of the fact that if and when you one hand, there are new elements to consider than when you two hand. Every time someone gets cut from one handing a chainsaw, everyone else points and goes, "see, i told you so". Then the person who got cut is told, "you should never ever one hand a saw...its dangerous". What about all the poeple who cut themselves two handing a saw? They got hurt two handing a saw, should they never use a saw because its too dangerous? What about ground saws? How many people get cut while using a ground saw every year? Is it because they were usuing two hands, or because a saw is naturally a very dangerous tool with no legal/mental reguirements to own/operate one? There are certain techniques that will be used when certain situaions arise. I say as long as you understand the technique and risk that is associated with it, then by all means keep it in your tool bag for use. As for myself personally, I will take an extra second to lanyard in to a better, more secure position to allow for two hand use of a saw while climbing as often as i can, but if i am in a situation in which i feel a one handed cut wins out over a two handed cut (rarely it does), for whatever reason, i will do it. I think the inportant thing is to understand the greater risk associated with and already hazaordous peice of equipment.