Alright now you're talkin'! I have a Pro Swing that I'll use with my CTX and with my Explorer....with a big coil and Sunray probe it's bulky. The CTX with 17" I can swing for an hour or so before I feel it so for a longer hunt I'll wear the harness sometimes. The harness is really nice,but you MUST spend the 15-20 minutes it takes to tweak it to be just right for your body shape. All the adjustments are there,so taking the time is very important! It's very nice in weather that does NOT require a heavy coat,it Is a bit of a challenge to use with a lot of cold weather gear. What you want to know is if it takes the weight of the machine and distributes it so no one thing hurts after awhile and yes,it does. If I'm lazy I'll just hook the right bungee cord to my left rear-ish hip belt loop,sling it over my shoulder and hook it to the machine. Works well with a bit of padding under the bungee where it sits on the shoulder...but it ain't no Pro Swing.