Hell to the no am I going to go through every single tin and jar it up. I agree with Harris in that if you keep your tins in a steady climate year round you’ll be okay. I have taken some precautions on some of my older Gawith tins and put them in Mylar bags but that’s as far as I’m going to take it. I have several of their tins with over 10 years on them and they are holding up just fine. If I lose a tin or two to a seal failing than so be it. I already have at least 300 jars for my bulk blends, I’m not about to buy 600 more jars to put my tinned tobacco in and that’s not even to mention that you are interrupting the aging process when you make the transfer. I think extreme changes in your climate will pop the seals, like for those people who turn the ac off when they go to work in the summer, their house temp gets up into the 90’s then they get home and cool it down to the low 70’s, that extreme change in temperature has got to reek havok on your tins. But then I even get to thinking about my jars, the manufacturer has recently put out new seals that are supposed to last for up to a year and a half, does that mean we should be replacing are jar lids every year and a half? I don’t and I’ve yet to have a tobacco dry out on me. Point is, yes, you want to protect your investment but overthinking it will drive you mad. I did just transfer some Esoterica’s that I’ve kept in their original bags for 2 years into jars after reading a post from Chuck Stanion regarding Esoterica’s Mylar bags. I’m glad I read that post when I did as there were very small pinholes that I could only see when investigating the bags from the inside as I could see the light shining through. Truth is, most of us will either be dead or have to quit smoking pipes due to health issues before our tobacco’s go bad on us. So, smoke what you like today because you just never know if you’ll get the chance tomorrow.