I've been having some interesting movement coming from the middle portion of the shaft recently. It seems as though I'm having lig pops down the middle of the shaft, and only on one side. The only problem with this is that it runs down the middle portion of the shaft. I've thought about this for a while, and it hurts a bit when it happens but nothing serious, and I think it could actually be scar tissue. I'm not 100% positive on this but it could be scarring from previous heavy duty sessions and as I've backed away from those types of sessions the tissues are softer and now they're breaking loose. Now, I will say that I've had a serious operation and I have an idea of what breaking scar tissue apart is like but I'm still not sure that's what this is but it very well could be. Does anyone know what I'm experiencing with this?