RE: Need advice/tips
Use only the hen decoy -using with a Jake it has a good chance of screwing you more. Do not over call.
Also I agree with above statements whole heartedly and U bet I'd be out there -but spend a bit more time to answer this question - where do these birds normaly feed after fly down?
Where do they spend the good part of their day? Try to find the common travel route and if need be use that as a secondary sit!
JW