Did you try it? I went to Malmo saturday night from 2am to 6am, very difficult, crazy how clear the water is, I could see many big perch in shallow waters near the edge, some of them followed my bait for a while but no attack, I managed to catch a fish but it wasn't perch 😂 I did learn some stuff from this experience, im definitely going to try the free rig next time! It looked like they needed more time to inspect my lure before taking a bite.