[Iguana]

Ayoz, I think this could be the key as to why some guys are such hard gainers while others gain almost effortlessly. The report says "In 20 cadaveric specimens, the TA (tunica albuginea) of the CC (corpus cavernosum) was formed of two layers: an inner circular and an outer longitudinal (Figure 1). In six of the 28 specimens, it consisted of three layers: an inner circular, intermediate longitudinal and outer circular (Figure 2). In the remaining two specimens, the TA was formed of a single longitudinal layer "

So out of 28 cadavers the breakdown was:

7% (2 men) - 1 Layer Tunica
71.5% (20 men) - 2 Layers Tunica
21.5% (6 men) - 3 Layers Tunica

You would think the single longitudinal layered men could gain some massive girth very easily. Well, not these guys, but other living guys could. If this is an accurate cross section of most men, it could explain the easy, medium and hard gainers. The percentages look pretty close to what we hear from newbies starting PE. Think about it, if one guy has a 1 layer tunica how much easier will it be for him to gain as opposed to a guy with 3 layers? I guess the good new is you have about a 78.5% chance of being an easy to medium gainer.

Here's when a generous doctor and with a shiny new MRI might come in handy!