We got suckered in to the whole fullbody craze 2 years ago. I'm not going to lie, we saw the first Zink snow goose hunting part and went out and dropped over 3000 on fullbodies. We have just under 200 and the birds do decoy into them like you wouldn't believe, but when you are dealing with muddy conditions or large groups you might as well stay home. We bought 700 or so sillosocks now and in the spring we only set our fullbodies up once or twice out of 16 days or so a spring. The way it has come down, when hunting in the fall, fullbodies. In the spring, sillosocks.
I have had my best days, number-wise all over sillosocks. Because I can get out in those sticky situations where it is snowy, muddy, and windy.
hunt by myself over sillosocks
I have had my best, closest decoying birds consistenly over fullbodies. Just last weekend we had a group of 2000 snows at about 5 feet-50 yards, with groups landing in the fbs. We shot 16 out of that one group between 4 guys, but couldn't pull in migrators with only 240 decoys out.
Hunt on Halloween over Fullbodies.
My unbiased opinion.