Dehydrated fish has been reported as the best bait.

Regular corn works great. That is all I use.

I doubt your bait is the problem.

How long did the hogs stay in the trap before you got them out when you caught last time?

Did you catch the entire sounder?

Did you use a shovel and get all the pig crap up?

Does your gate have a threshold that the pigs have to step over?

All of these things play a big part in catching pigs quickly. Any trap will catch a pig or pigs. But, that is not your goal if you are really trying to put a real hurt on the population.

You need a trap that catches the entire sounder each time.