I preach this all the time, you have to watch your line constantly. One of the problems I have with screen watching is a fish can hit the jig while not in focus on the screen providing slack. They also spit the jig out before some screen watchers ever know they had a bite. Being conscience of the approach direction to target so your perifocal vision is locked on the line while eyes are focused watching the screen is desirable at the very least in my opinion. Hi vis line with the last 3ft blackened with a Sharpie allows seeing the line go slack easy even out to the side of your vision a bit.