I have a slightly different take on it. I think that your body interprets exercise as a “fight or flight” situation, and you turtle to protect your most treasured body part(s). As to why some guys don’t experience this, I dunno. Perhaps their bodies just respond differently to exercise and the body doesn’t see it as a threat.
That being said, I don’t see how an ADS on low tension could do any harm. Hell, the movements aren’t that different from walking.
11/09 - Egms 6.375, Bpel 6.25; 9/10 - Egms 6.6, Bpel 7.0 1/12 Egms 6.6, Bpel 7.0