The Tiger has built-in slits on the pole-mount flanges, and I use a dive belt and simply slide it on. I also add a goodies and trash pouch to the belt. Once I ground balance, I slide the control box around to my back side, and its out of the way. If I need to readjust it, I simply slide it around to see the controls.
I also tried chest mounting it one time. If you want to see the control nobs right side up, you will have the pole-mount flanges against your chest which is uncomfortable and the unit wont sit straight (it will flop to on side). So I made a special belt-loop plate that would mount to the existing mounting holes for the pole-flange (you need to remove the pole flange bracket). This plate is flat, with a belt-slit on each side and you simply thread the belt through each one and it lays flat on on your chest. I actually used the Fisher chest-mount belt and it worked pretty well. I found I didnt like that arrangement as much, even though the controls are all right facing and easy to see and adjust, because it sort of gets in the way of looking into your scoop. I liked it better when it was around my back, belt-mounted and out of the way, and since I rarely need to make any control adjustments it made the most sense.
When I am done hunting, I remove the control box from the belt (it slides off easy) and clip it back on the pole assembly for storage.
Hunting with the control box off the pole assembly requires you to add a small floatation foam to the pole. If not, when you let go of the pole to recover your target, the pole will sink to the bottom. I cut a 3" long section from a foam "pool whip" (those summer toys kids use in the swimming pool), then slit it length wise and attach it to the pole just above my hand grip with a Velcro wrap. In this position it holds the pole assembly in perfect position so you can grab it and continue hunting after each target.
The tiger is a bit heavy in shallow water, and this arrangement makes the pole assembly very light-weight.