I say go for it.

During hunting season animals hear a lot of shots and I don't think it spooks them as much as most people would think..

Plus which is better?

Knowing your rifle is bang on or..

Watching a gut shot deer run away?

If your not sure I would say check it you never know. I have been running gun boots on machines for over 20 years now and have all kinds of experiences with them. They do keep a gun well but they can shake something fierce. We always double and triple strap ours down with good bungee cords on top of the bracket. I strap them at the bottom to the foot peg area and at the top I cross strap them to the wrack to get the shake out of them. If your gun sits in there loose like some semis or pumps and levers will I will stuff a rag or a rolled up wool sock along the gun in the boot to take the shake out. A fast vibrating shake is worse than a shot recoil, it's a fast vibration that can move a scope setting. I replace the pins they come with that mounts the boot to the brackets with either bolts or depending on what type I will tie it down with a few wraps of good hay wire. The boot cap I use a softer bungee cord to pin it on with rather than the pins as the pins vibrate and make noise I don't like them when I'm hunting. It's those kinds of noises that will spook an animal. Engine noises don't scare an animal it's the extra noises that will, the shaking banging noises. Same as in your quad box, don't have stuff that rattles and bounces around when your traveling. If you have a hard object in there stuff extra gloves or jackets around them so they don't bang and clang when you are traveling. On my new machine I rigged up two years ago I purposely put the rear fender gaurds on it so I had that to strap my gun boot to securely so it wouldn't bounce around. You may only get one chance in a lifetime at a trophy animal why take any chances, do your do diligence in making sure everything is as good as it can be.