I still love the old school BCC tanks. Whatever works for YOU is what's good.My menthol vape is not a tank cracker. I use my evod tanks with them some and they're plastic.
I always look to make sure and have noticed that some do!
I don't know what makes them different.
I know that I go through less juice than most people. I use it like a medicine for my muscle spasms and that is how I smoked the last 5 years or so.
On the plus side my mvp pro has lasted 2 weeks now, but I do still use my vv3's a little.