I have used open end, method and maggot feeders on both commercials when it's been too windy to keep a float steady against far side rushes, also have a feeder rig set up on a topkit when I fish a canal that really pulls through when lock gates are opened . The way I do it is put feeder on after putting suitable float on the line, the float is purely for a marker, it can be set either dead depth or over depth depending on conditions.