Look on go pro trapping may give u the tips and answers u want. I personally use a round trap with a slap gate bate it with corn and oil to keep varmits out or even get a sow put in there and put estris on her boars should come to the sint and end up in the pen. Im no pro but this is what helped me and some say the pigs are not to comfortable with stepping in wire or ect they like the rugular ground itself.. But anyhow good luck
We use that kind too but we cover the bottom of the trap with dirt, or mud from the hog pen and some leaves so that they might think it's safe, works for us
