Whether you believe in the power behind uncut hair or not (real or imagined power in your mind), the main issue with me isn't long or shot. It's cut or uncut. Some people can't grow long hair. My daughter's (she almost 2) hair is so curly she may not get it past her shoulder blades. However, I know of situations where women received answers to prayer beseeching God over their lost children, and in the course of prayer they mentioned to God they hadn't ever cut their hair. It wasn't long after the children returned to living for God.
I am not throwing stones at those who don't believe in any authority in the spirit realm granted because of uncut hair on women. To worship uncut hair (or a list of standards) is idolatry, I grant you that. I'll be the 1st person to tell you that God is more worried about the plumbline than he is the clothes line (I'm saying that as a conservative).
This is my experience with the whole thing. While praying one night an image popped into my mind of a woman kneeling, praying, while her hair fell down her side. Average looking AP woman. Then the hair turned into golden wings and the woman disappeared, and all I saw was the top of the Ark of the covenant. The two angels of beaten gold, their wings met on either side and encircled the place where the glory (doxa in Greek, kavod in the Hebrew) rested on the Ark of God.
I realized at that moment that the ark of the covenant wasn't lost. WE are now the Ark, filled with His Spirit, we carry the glory with us - if we let it (divided tongues like fire sat/rested on each of them).
I also realized 'because of the angels' in
I Cor. 11 isn't just about the angels of God, but a type and shadow of those that were on the Ark of the Covenant.
Ok, that's my two cents. I do object to the belief in uncut hair being called a doctrine of devils, but I also object that some women (and men) believe that a woman who doesn't cut her hair is 100% right with God when their human spirits are as nasty as some Wiccans who also don't cut their hair. Without prayer and a relationship they are as ' a sounding brass and a tinkling cymbal', all noise and no substance. It's another form of idolatry, they don't look past their hair to the one they keep it uncut for.