The key to a long soak is bait. Once the bait is gone there's a way out. I recently (winter) had an 8 day soak that normally would have had zero (bait is done) that had 8 crab all over 7.25. One at 8". The bait was one of our chickens that an eagle killed but we chased off. Whole chicken feathers guts and all. It brought and kept them interested for 8 days. With that said I have pots with identical openings that fish different. I think electrical charge has a lot to do with that. I have several pots I don't fish because they ALWAYS have mostly females. I used the 360 degree opening type up in Alaska with good success.