The pump damage that Ken sustained is something that he told me about, and the pumping was not to achieve thickeness, but to help him maintain and keep an erection while shooting his films. The pump also helped him achieve what they like to call the "vascular rod," when a cock has its veins big and bulging, and the color is especially vivid.
Some vascular damage, such as that sustained by Ken, can lead to Peyronie's, which led to his exaggerated curvature. I haven't seen or enjoyed Ken in a long time, so it may be that his condition is improved.
Ken, when I knew him, was a great guy--sexy and sweet.