I find the glass vg still produces some of the biggest lung busters of any of my vapes. I've never used any other style of vg but I find there is very little air flow restriction which looks to be an issue with the bat and classics. I purchased a HD vape with glass bong connector from etsy and the glass VG diffuser fits in perfectly. Used with a torch I can produce very thick bong hits. Much much thicker than the video above. Equal to my supreme easily. You just need to be careful of combustion. I have had limited success producing thick bong hits with a regular lighter but haven't really put in the effort so i'm sure its possible. So yeah hit up etsy or slide that diffuser into any 18mm adapter or joint and give it a go.