Sounds like you have a lot of factors going against you.
Are you tied to a particular field or location?
Being where they want to be is going to get you more birds than any call you can buy.
If you are locked in try to differentiate yourself from the rest of the public crowd. Not only with calling but decoy type and quantity.
Most of what I remember about PA is lots of hills and bluffs. If your call is putting out an echo switch to a Ken Martin/Glen Scobey type call nothing fancy just short clucks and mellow honks.
If you really want to throw them a curve get a tube call and spend the rest of the summer learning it.
From the sounds of your problem your dealing with stale geese that know the ropes.
Good Luck, Will
