Buckshooter,
A decoy will help! It gives them something to, want to come and get. As far as a Foxpro I hunt with friends that have them and they are Nice. Do you need one, Well No you don't. If your doing good with your hand calls why change. Just remember not to call the same places over and over again and expect to see them every time. Change stuff Up use a diff. sound in a diff place. Watch your wind and you'll do Fine.