I have been using the knot a long time and have seen some slip on the 3 turn. But using 40-50# I use a 4 turn and under that I use a 5 turn and that works pretty good to hold the loop and the tag end. With a 3 turn I had a few big fish that have pulled down the tag end close to getting in the knot but the tag end would have to go through the wraps. (As you were close) As far as pulling the loop, any solid bite will pull it down to the hook eye, I retie when that happens. The loop strength depends on how many wraps you use for the line. And how hard you pull back. This is 80#.