I would think by the brightest of the nock you can see it's flight path and detect a wobble in flight or instability

Both... Ground mainly.... until about 6 weeks out and then concentrate on shooting elevated.....

Brightest nock and simple string activated switch and turn nock off by the switch... Easy

Best out there

Well I use a Summit Viper climber..... I try to get up at least 20 feet..... I have a rangefinder on my Crossbow and like shots no farther than 40 yds.... At that distance I can get a complete pass thru with no problem..... I hunt Whitetail deer here in VA..... I do also hunt from a ground blind.... Now 25 feet up and a pass thru the bolt sticks in the ground not much farther than the deer was.... But in a ground blind with a pass thru the bolt travels a good distance and a lighted nock really helps in finding the bolt....

Yes... Same with me..... Plus on pass thru I can find my arrow.....

Thank you !!!!