Just like the topic says... how thick should the ice be to cut a big ol spearing hole without worrying about your shanty or you going in? I feel like 3 inches is too little? Is it good at 5 inches? 6inches?
I am good to go with 2.5-3. Of course I use a pop-up hub that is light weight, and saw 2 holes, so that when my initial spot begins to sag and get wet, I can easily relocate to finish the day. Necessary evil for spearing thinner ice. I also like to use a auger for the corners...... not sure it cuts down on possible fracture points or not, but seems like it would, on thinner ice.