For the past few years, the ducks seem to get turned off quicker with the mojo's. With my experience from guiding hunts, if you have two, offset them. In other words, put one low right above the surface of the water, and then place another above and behind it. Make sure you give them a hole in the decoy spread to come in to. Help make it more realistic. Make sure you give the ducks your hunting a hole to come into also near your mojo's.

Mojos will work during teal season and the first week or 2 in big duck season. After that I take them out make my spread majority coot and what ever other ducks are around.

My experience with mojo's is that you need to get the remote kit to turn them off and on. Sure at the very beginning of the season they work fine, but as it wears on, you need to turn off the mojo as ducks are decoying. A good practice is to turn on to get attention, turn off when soft quack and feed call when approaching, then turn on momentarily after birds have banked past the dekes and need to commit on the turn