My personal thoughts are that natural horsemanship is just good
horsemanship. There was no such thing as 'natural' when I was growing up. I finally broke down and watched my first Parelli video last week, thinking perhaps there may be something I was missing. As soon as people heard I'd adopted a mustang last year, that's all I heard; "Who do you follow?" "Do you do Parelli?" And I'd send them all into shock when I'd tell them I didn't follow anyone and had never seen Parelli.
Anyway, I was happy to see that what I'd been doing for years was pretty much what Parelli was doing in the video. Working with the horse, not against him.
The only other person I've ever watched is Leslie Newman. She works primarily with wild horses, but what I like best about her is that she'll let you know that if what you're doing works, then you're doing it right. If your horse will respond to your doing cartwheels on the rail of the round pen, by all means, do the cartwheel
And I must say, I agree!