Sagat in the Muay Thai Library was the first one to really push hard at getting rid of this in Sylvie. It was a major point of his. Everything from within the frame. Sylvie would stand with her side against a wall to get the feeling right. Sagat was a pro boxer as well, and came from a boxing gym. Gyms with connections to boxing are much better at getting this right. Lots and lots of Muay Thai gyms get into bad habits with their winging punching, holding pads wide. Not only does it make punches less accurate, less consistent, I think the chicken wing also helps the opponent see the punch a hair sooner. When it come straight out of the body its very hard to see, track or gauge the speed of. I think this is a huge problem in Thailand's Muay Thai, to be honest.