I use to have 4 doz shells and 1 dozen full bodies and would get some geese to commit but the last 2 seasons me and my buddies sold the shells and spent some money on full bodies! In my opinion the best money ever spent!!!
Even if you dont have the money i would rather have less decoys but higher quality for geese, the canadians are getting wise like the flying carp!!!
Everytime I go out duck hunting, I see them in groups of about 75-100 migrators, I live in northern NJ and all you southern guys better gear up for the season cause you are getting craploads of geese for the season opener.