A steady stream of flycasters, young and old, male and female, had made it over to the casting lawn, and lessons had been going nonstop. As it turned out, over 600 people received free casting lessons from Team Sage at Camp Jeep, the national family outdoors retreat sponsored by Jeep Corporation every August. Most people were beginning casters and had trouble forming good casting loops and keeping their wrists from bending. Here, a short amount of line is held in the line hand, which rests at about the maximum distance you want it from the rod hand.
Slack is a sag, bend or curve in the fly line before and during casting.
This loading move allows the rod to bend more fully during the power stroke portion of the cast. Slack attacks during loading and powering. Quite often the casting instructor will bark instructions at you like a drill sergeant. Getting the basics straight helps in getting the slack out. Beginning casters are particularly frustrated when their line piles up at the completion of a forecast.