Beast Fleye and the Beast Cheat Cones

[@SaltwaterEdge]

Really interesting stuff!

[@RupertHarveysflies]

Thanks guys

[@markinnis8404]

I am curious what the advantage is with these cones? Why isn't a thread dam just as productive?
Are these being used to use less thread?
I am not knocking this, just curious if i am missing something?
Thank you!