Let me start by saying I’m biased against ADS because I hate having anything attached to or hanging from my penis during normal daily activity. It cramps my style.
With that said, this business about “tissues healing in an extended state” strikes me as highly suspect. The tunica is, at a microscopic level, an exceedingly folded structure. It’s about 5 to 10 times thicker when flaccid than erect. When you stretch the tunica, it unfolds by allowing elastic fibers to stretch out until the limits of its collagen matrix are reached. Hanging with heavy weights ever so slightly enlarges this collagen matrix (probably by micro-tearing).
It seems that for an ADS to keep the collagen matrix extended, it would have to hold the tunica at or near its fully loaded limit, i.e., that which caused the penis to extend beyond its previously greatest length. Otherwise, the tunica would not heal in its stretched state. I’m not aware of any ADS that does this.
Another point to consider is that healing from micro-tears takes place over a period of several days, not hours. Therefore, successive sets of heavy hanging, even on different days, will blast through any early stage healing or cross-linking at anything less than a fully extended state.
I think ADS may be effective in extending your flaccid length, but probably not for the right reasons. Penismith’s earlier thread “Why gains slow” introduced the fact that protracted penile hypoxia, which is caused by low blood flow (such as that which accompanies the use of ADS) causes the buildup of fibrotic tissue in the corpora cavernosa. This fibrotic tissue tends to stiffen the penis, even when flaccid, and may therefore “improve” flaccid hang. However, it’s probably not healthy and may even contribute to erectile dysfunction.
Like I said, I’m biased. So feel free to disagree.