I too would mix both and do what suits you, I know my ri agrees with many NH methods but feels having a horse walk up tyres is taking it too far in her personal opinion. Although about 10 years ago I sent a horse to a ai friend who produces show ponies, he needing braking as he brought from a herd, I sent him away as my daughter was a toddler at the time and ending up collecting him after 8 weeks as he was no further forward and he still had major anxiety issues. If you were behind his eye line he would freak, I brought him home and did lots of desenstisation with him, we did join up, then I booked him in to a NH trainer, and within 3 weeks she had made huge progress with him. Within 5 weeks he was riding away and came home to continue his education, and everyone couldn't believe the change in him. So for me I do believe in NH, my horse just needed that type of approach as the more conventional method wasn't working for him. I suppose every horse is different and I'd you whatever I felt was working for me and my horse/pony.x