Thanks for the prompt answer, which color (or all in general will have the same problem)? I also read that some units come with not centered screen !?
The fourth option is vaporesso Armour Pro
$37.89 Authentic Vaporesso Armour Pro 100W VV VW TC APV Box Mod - 5-100W / 1*18650/1*21700/1*20700 at FastTech - Worldwide Free Shipping
but also it has it's own flaws
I'd get the vaporesso Armour... Looks and sounds awesome. It will be a little thicker in your hand but allowing you to use different size batteries is a good thing if you have them. I have 20700 batteroes that lasts a long time with 4250mah.