Flow Test Comparision - Clean Head Vs Dirty Head

Which flows better and how much ?

  • Dirty Head Flows Significantly More

  • Dirty Head Flows Slightly More

  • Both heads flow essentially the same

  • Clean head flows Slightly More

  • Clean head flows Significantly More

Results are only viewable after voting.
OMG, that video, that guy sure does like to talk.
18 minutes of talking to say what could have been said in 3 sentences.