So I've read back and forth opinions about putting crowns in the unit. What are your opinions? Specify a crown? Don't specify a crown? And for those of you that do specify crowns, do you make sure the single thread the hair and bleach the knots?

I feel like the crown is one of the more important parts of hair to prove realism. But I'm looking for other opinions. It seems a fair amount of people just get freestyle no crown, if you do that are you essentially able to style the hair so it looks like there is a crown? Thanks for the help!!!