Sensei McNeill was/is a direct student of Shihan Toshio Osaka, one of the most highly respected teachers in the Japanese arts.
I studied very hard under Sensei McNeill, and eventually was able to lead his classes through warm-ups and basics (despite still being a peon). Sensei McNeill taught control, discipline, attention to detail, and always, always stressed proper stances and good basics. He was a phenomenal teacher.
On the nights I was not training with Sensei McNeill, I trained under Sensei Doug Jepperson. Sensei Jepperson was an intense and knowledgeable instructor. It was years after training with Sensei Jepperson that I began to understand everything he taught. He understood fighting distance, timing, and the psychology of fighting very well. My favorite saying of his was, "My fighting distance is about nine feet; I'd suggest backing up a bit." Uh, yea...
After a couple of years, I needed to improve my overall skills, so I began studying directly under Toshio Osaka and his hard-core students. I learned how NOT to get hit (cause when they're trying, getting hit does hurt), I learned about angles of attack and defense. I learned to when to keep my damn heels on the ground and when to be on my toes. I continued to learn the importance of basics, and too many things to mention. But still... I was just a beginner.
I made it to class 3-4 times a week for months, and months... until life reared its ugly head and my work schedule forced an abrupt halt to my training.