Lower lip position in Free buzz

[solidshi8]

I used to do the free buzz with lower lip curling in the lower teeth, but can’t really buzz high…
Then I noticed people said lower lip should roll in instead of curling in… What does the rolling in mean?

[Doug Elliott]

Any description depends entirely on the shape of your lower lip... Everybody's different, there's a huge variety of lower lip shapes and textures.

Pull it in as much as necessary so it doesn't flip out when you try to buzz.