well.. another puck update.. I used it yesterday and when I first used them I had used my jiffy propane 10".. they worked, but 2 would have been better ..as I said. Well, yesterday I used my 8" Nils and they work AWESOME with an 8" hole. No freezing and nice slight "wiggle" to your line every so often. Of course, the fish didn't decide to cooperate for the couple hours I got out ...missed 2 good hits on the jiggin rod.. but that's it. I got the others delivered today so I'm going to try 2 in a 10" hole and will report on the results. I can't get out tomorrow unfortunately, but for those that can.. pre front.. it could be on. Good luck if any of you get out.