So after buying my first Evo, my friend told me she was selling her's to her cousin because it's perfect for concentrates, but vaping herb kept making her cough, even with the HydraHoneyComb hydratube.
Now I myself bought Steven's Chydratube off of DHgate and noticed the same thing: vaping herb past 1 o clock would irritate my throat, but concentrates were perfect and smooth.
Anyways, I saw some people here posting pictures of using their Evo inverted on their glass bong, and myself had to try it. Luckily I own the FC-187, and that thing is PERFECT for taking a vaped bowl on the highest temperature all in one draw, with NO COUGH
I feel like I got my fucking money's worth now being able to clear a bowl like that. One of the reasons why I didn't like vapes before was because it made me cough a lot because it irritated my throat, but the FC-187 fixes that!!