I thought Philippe Karl has some great points, the main things I took from his presentation and book are: 1) either use the hands or the legs, dont confuse the horse by halfhalting all the time and applying both aids (thus rendering them ineffective) 2) avoid hyperflexion, instead encourage extension and always having an open poll and the head beyond the verticle I tried these with one of my horses and with my instructor after she attended the clinic (who rode/owns the black stallion) and i felt so connected with my horse, he moved so lightly and we really did reach a greater understanding. I'd recommend everyone try at least these ideas! I had no idea my horse could move his hindquarters so much! I'm currently looking at purchasing a new Warmblood and now every horse I look at is just shown with pictures with their necks hyperflexed and behind the bit!! It's very frustrating and I didn't realise how many people view this as the 'ideal' way a horse should be ridden!