Vampliers finally got back to me about the linesmans today. Apparently they cut four solid #12 wires and the pliers functioned as they should. They tell me I was sent a defective pair so I am going to put the new set to the test. First I am going to duplicate what I did before and have it on video just in case another pair gets messed up.
It's time for my review. I like them, but don't love them. As far as a traditional linesman plier, they aren't that great. The head is too narrow to twist more than four #12 solid wires together and they are too light to use to smack something in place of a hammer. I think everyone knows about my trouble with the handles locking up the first time I used the first pair to cut the bundle of four #12. The same thing happens with the new pair, but I can work the handles back and forth a couple of times and get the stiffness out of them, but that takes time and time is money when you use them for a living. Maybe they will break in better in the future, but I'm not going to use them in the traditional sense any longer, so I doubt I will ever know. Thinking about it, I don't think I used them to cut a 12/2 Romex so I don't know if the handles would get stiff cutting that or not. Like a *****, I went on auto pilot and used my strippers like I always have. Where these pliers shine is with #8 and #6 stranded wire. They cut and strip as well as anything I've ever used as well as reaching into a box to grab the wire when it comes out of the conduit. They would probably work well with #4, but I haven't used them for that yet. I doubt they would work very well cutting anything larger than #4 because the handles are just too short and there won't be enough leverage. It takes a little bit of effort on my part to cut #6, but I have been having serious thumb and wrist issues for a couple of months and my hand strength is going away quickly so I think that part is on me and me alone. They would also probably work awesome for someone doing low voltage work. I do very little of that, so it might be quite the wait for me to review them in that aspect.
Overall, I think they would work good for a home shop where nothing major is going to be thrown at them. As I stated, they work well for what some people would consider larger wires, #8 and #6, but I wouldn't buy a set just for that, I have my Greenlee 727's that I've been using for 20+ years, but those can't grab the wire so I also carry long nose pliers. The Vampliers would cut the tools from two to one in that aspect.
Thank you to Vampliers and four.cycle for the opportunity to give them a whirl.