what was the secret to such improvement?
I wrote a whole exhaustive report describing every detail over on ironage.
It was in response to MaxRep regarding HIT training. He posted part of it in the training section on this board when I use to post as MTwain.
The main points were progression, find ways to increase the intensity, and allowing for full recovery. Always keeping in mind the principle I first learned from Author Jones: "As long as you keep working within your functional ability, doing things that are already easy; exercise will do little or nothing by way of increasing muscle size, strength, and functional ability."
And I did it all without any weights or machines at all. Just a door jam and a dictionary.