Take Fix's advice, make sure you have a goo Spring Compressor, I made my own and forgot to add a safty strap to hold the barrel in place, long story short, I took out a new 22 inch flat screen on my computer, the power chamber shifted and off went the spring across the garage, 25 feet away there went the screen. First and last time that will happen added a safty strap to make sure all is held in place, I also learned to put a towel/ cloth over the end to prevent it from going to far should it slip. Tunes came out great for 1st & 2nd tunes, flat screen lost. Good thing no one was standing in front of it, my wife came out to see what I was doing, and for a moment could not understand when I yelled at her not to stand where she was and to get out of the way, pointed to the screen and she moved, no more questions, the spring can an will but a real bad hurt on someone or something. Use Caution while working with the spring.
