Bait does make a difference and cage traps catch more possum for me too, but it all depends on where you are and what the population numbers are. In the city I catch more possum than coon by about 3 to 1 but I can only use cage traps in the city limits as well. In dp traps in the woods it is probably 6 to 1 coons to possum in the places I have trapped no matter the bait. Sweet baits will be more likely to catch less possum. I think possum, because they are slower and more scavengers , find the strong fishy baits easier and use their nose more.