If you want to suspend your fly in stillwater at a depth that would make it impossible to land the fish – this is the type of indicator that you need. Normally, if you are using an indicator, it is securely attached to the leader and it will not move. If the indicator is set 12 feet above the fly and your rod is only 9 feet long, this poses a problem when trying to land the fish. As you are reeling the fish in, your indicator hits the tip top of your rod and you can no longer reel any more of your leader in. With a fixed indicator you will not be able to get the fish close enough to land.
No matter the length of the leader these slip indicators hold firm during casting and retrieving until the hook is set. Then they release and slide down the leader letting you bring the fish to the net.
The most common application for this type of indicator is for fishing lakes at depths of 9-40 feet deep.
