I hav e been pouring for over 12 years and stopped poking holes about 11 years ago, also had to stop heating my jars, I make way to many to go through all that and after the first year I realized I was waisting my time, they dont ever get sink holes at all unless it is really cold out and they dry to fast after I pour them, and then I will fix those but trying to do every one? NO way, I pour about 60 cases a week, I just would not have the time, and why fix it it it isnt broken?