Most would consider my hunting active. (This is Rokslide after all). But I try not to actively run after animals.
The plugs that I use have several levels of attenuation and amplification. So to be honest, I hear better then I normally can. I cut the tracks on a deer during a gentle rain, on top of slushy snow, this year. Knowing the area a little, I pressed on up the trail and cut up the mountain 3 drainages up with the intention of getting above him. After working my way back to the drainage that he'd been climbing I heard him take off in a gulley behind me. He'd traversed under me and I'd missed him in the brush as I was moving too fast. (It was a rushed hunt, I only had a babysitter for 2 hours). I had a hood up and was facing the wrong direction.
But the point is, I'd heard him 300+ feet away. In another drainage, with rain and snow on the ground. I had no business being able to hear that. I'd guess that a person with normal hearing wouldnt have heard it either.
I ended up shooting a mulie in a similar area a week later, muzzle brake on and with a rock cliff beside me. It was not loud. Not even close. With the rock cliff beside me, I would have normally found that shot loud in an unbraked rifle.
I have only 5 days in the field with them, but no issues with a toque, hat or hood interfering with them. Backpack straps havent bothered them either. (I am used to wearing ear plugs at work though). I had one branch slap the plug which was loud, didnt pull the plug out, but I had to readjust it. But I've had others hit them and they were fine.
The worst part about them so far is that they arent as sexy as a new rifle.