Last season I began by using an FHF bino pack with 10x42 bins, along with side pouches for my glasses, knife, lighter, headlamp, rangefinder, etc. I found it to be too much clutter and straps to deal with once getting to the tree and starting my set up and found myself doing without it fairly early in the season because of this. This season i'm going use the chest pack from FHF with no pouches and try to set it up with just what I need in my hands during the hunt, smaller bino, rangefinder, wind indicators, grunt tube, and phone/gps and see how it goes.
I will give a shut out to FHF for their customer service, the stitching on the front of my bino harness puled out at one point when I was overly enthusiastic and the edge where my knife was mounted rubbed through the stitching, Both were my fault yet FHF sent me a replacement harness without hesitation or issue.