Brian I use the X3 in a bag designed to fit quickly into my cart. I can easily use it in a bag for a couples of hours, even booming for a second boom when required. Started doing this last week and it was great. Would not wear it all day since it is a little heavy but yet, after about 8 hours, my back is doing fine. As a backup/second kit for docu work, I have a SD 633 kit at the ready. Here is a pics of me wearing the bag. Not so heavy by the way. Ps, I power my Octopack with a single Remote Audio Hi-Q 98wh for a full day. I also use the same 98wh for the Cantar ( external power ) and usually need two 98wh and one or two 49wh ( internal ) to do a full 12 hours day. Sent from my iPhone using Tapatalk