Steve,
Good for you setting your guns down. I want one more with my rife to honor the man who passed last fall who gave it to me. After that I may use my muzzle loader from time to time but am slowly venturing to bow only.
If you sit and be patient you should see a lot of squirrels. Most people try to walk up on them, this only works best when you are deer or turkey hunting so maybe try that instead
I use things that peak their curiosity. They are already jumpy, dont need them on edge too but if distress calls work go for it.
Sometimes I will periodically rub 2 quarters together or 2 rocks to make it sound like a squirrel is chewing on a nut.
They are tough critters and if you have old broadheads, you will have less work with a direct hit.
In any case let us know how you make out and good luck!