Whatever it filters out is more than made up for by the comfort water filtration gives a hit IMO.
I'd think the ability to more easily hold the hit in also negates the loss a bit too.
I see more buildup on the sides of a piece than I'd think were being dissolved in the water.
I know how medicated one is is a subjective thing, but I've never felt noticeably higher one way or the other whether I've hit my solo direct or through water (the solo is the main one I do both for, still skewed towards water filtration like 85% of the time.)
If there is any difference, its negligible.
Another point of data, I felt way higher after hitting my dual solos with 1 stem each, than another time when I had 3 stems relatively quickly (within 1/2 an hour), so again, IMO usage differences between vapes/sessions will be more of a factor.
I'd wager that if you set up a test where you tried 2 different methods,
1 where you use your vape direct draw, hitting whenever you feel necessary.
and another where you hit your vape through glass, but imposed a time limit on yourself between hits/stems/whatever.
The one where you specifically wait a bit longer then you normally would will conserve you more herb IMO...
my
