I already did my water only cappi leafe extraction with good results  but now did another water only boil extraction  of some red cappi vine i had sitting around  for  over a year..
So far WOW!....very effective maybe more so than my cappi leafe extraction...
As a test i only used   a  tiny ..[11 drops of acacia tincture]]..maybe 10 mgs?
and it hit me so fast with a little cappi vine tincture!
As i took one  hit i could feel its ,magic working.. then opened a window exposing bright sunlit   day and started a second  hit and started to get  double images of the bright outside veiw in my head and knew it was working beautyfully!
This tiny 11 drops of tincture was just 
a test to see how good the cappi vine extract was ..and so far im very impressed...!
Vaping booth together worked very nicely!