I'll chime in with my 2 bits...not that my opinions hold any more weight than the next.
Enlarging of the penis is proven to be possible. There are medical studies that have tested and validate this.
Penis enlargement can occur through deformation of the tissues and subsequent increases in collagen and scar tissues brought on by inflammation. Penis enlargement can occur through applied
traction force (ADS) which can stimulate cell division and growth. Penis enlargement can also occur through hormonal manipulation and androgen receptor activation. All these methods are proven through medical study.
What we are collectivelly learning is how to combine these methods into the most productive method which well yield success to all interested parties.
Disagreements are an inescapable eventuallity with Penis Enlargement because as yet this is'nt a cut and dry knowledge. Look at bodybuilding for example. There are tried and true methods with provide results yet there is still much debate about which system works best and how it works.
Penis Enlargement is still in it's infancy. Fact is that "yes" penis enlargement works. How and why is varied depending on which path or combination you take. Results gained from heavy, intense hanging come from a different physiological responce than do results from edging and ballooning. Finding the combination of physical stimulus and hormonal is the key.
Clamping and pumping work partly in that oxygen deprivation (hypoxia) stimulates vascular growth. Diet can influence androgen receptors quantity and sensitivity and hormone levels. Force can stimulate deformation and light
traction over extended time stimulated cellular division. Being too agressive with your penis will cause inflammation which results in the temporary illusion of growth due to swelling.
Soon we will master this or I hope so. I've been at this for 20 years.