My experience with a pushup mast I had is that they get real hard to push up after a certain point. To get some of the lower sections pushed up and then hold them up with one had and tightening the lock with the other hand can be difficult to do. It may depend on just how you are positioned in relation to pull or pushing it up. Always a good idea to have another person around when working on raising or taking down a big antenna. The top section of of a pushup mast is not that large a diameter. I used to buy one that is longer than I want and take the top section off. Much stronger that way. Of course that depends on how high up you want to go. That's the way it should be done. That is what a push up mast is for. It's not a lengthen it out mount a heavy antenna on it and push it up from the ground thing. It is for pushing up each section and then locking them in place. You could probably tilt up a shorter extended push up mast that just holds a very small antenna fairly easily. Not that much leverage working against you. With a 50ft extended pushup that has a 28ft antenna on it, you my tilt it up and have the bottom section almost vertical and the top of the antenna hasn't barely left the ground!