I have tried a few variations of the 2TC method the past couple of days. I am able to move up the tree but it seems to be a slow process. I will try some more in the off season and see how it goes. In my opinion and this is my opinion, I'm not trying to be critical of the climbing methods others prefer. When I 1-stick with a 3 step aider I am about 7 feet off the ground with one move. It only takes me 2 more moves to get to my normal hunting height (I usually hunt at 15") In the time it takes me to set up the ropes for 2TC i am already starting my second one stick move. As far as weight savings goes, it is negligible for me. With both methods my tether rope is also my rappel rope and I always use a platform. Carrying a 20" stick with an Amsteel 3 step aider only adds about 3lbs, maybe less since I am not carrying a second tether. I also feel more secure on the stick when setting up for a move. I will try it again but at this time I don't think it will be my go to method. This is just my opinion and whatever works for you is what you should do.