IMO there are a couple specific questions and thoughts.
First, many saddle hunters, if not most, are using devices out of spec for the rope diameter they are using. There are no assissted belay devices I know of rated for 8 mm rope which many guys use. Anecdotally it seems fine. Are you comfortable with that? What about on wet/icy ropes? To each their own there. I use certain devices out of spec and out of best practice too. But it would be cool as we see rope access for hunters growing in if we could get some dedicated mechanical devices geared toward hunters (lightweight) that test out for 8 mm rope.
Regarding using the device at hunting height I think the feasibiltiy of that depends a lot on how much pressure you keep on the device. Which sort of underlies are you team ring of steps or platform, where ros guys tend to keep tension on the tether the entire hunt and platform guys do not.
Second, I see a lot of guys using these mechanical devices that probably have not the slightest clue or practice how to self rescue if the device were to jam or otherwise fail. Sure a catastophe knot is a good practice in theory, but if you needed that and you're now hanging there from that knot, do you know how to transition to a backup rappel device? Or are you going to be hanging there until someone else can rescue you?
As another example, a friction hitch or autoblock below a belay device is one recommended procedure. Well, if not spaced properly the friction hitch can jammed get up into the device then you're stuck hanging there. Now you have a situation where you have to self rescue or hang there until someone can come get you. Would you know how to do that self rescue? You really should know a couple ways to self rescue and practice them before you ascend 3 feet off the ground SRT no matter what progress capture device you choose.