Just transferred about 20-25 pounds from jars to Mylar. Used about 110 quart bags
Weight is less than half of what it was as glass weighs more than tobacco in any jar under a quart.
Used a hair straightener to seal.
Good info from @Sir Saartan and @blackmouth210. I've not been sure how much air to keep in my bags. I am also not vacuum sealing. In the beginning I was not pushing as much air out as possible, but then I took the tin approach to heart and have been trying to evacuate as much air as I can with my hands. I'll be able to tell the difference in a few years, God willing.
Glad I found this thread since I have seen Mylar mentioned a few times here. I just ordered some bags because I have around 50 lbs that need bagged or jarred. I got most of this in the last month trying to beat Ohio's 17% excise tax on online tobacco purchases. I already have a lot jarred and had a shelf collapse and lost 5 lbs of tobacco and wanted to find a better solution. I'll give this a try and see how it goes.
Looking good. I need to get some more pint bags myself. For the rate at which I smoke most blends, I'm finding I don't really need a larger sized bag. I may search for the clear fronted bags for my next purchase.
I have now converted all of my bulk (60 pounds or so) to Mylar and can now lift all of my 35 gallon totes without blowing out a hernia or hemorrhoid. I also put all square tins in Mylar just to be safe.