So, currently my EL is 6.5 inches, and I have a goal of 8 inches, but I\'m not sure where to start. What are the most effective methods for Erect length increase of 1.5 in?
There are no methods with predictable results. You can try any forms of stretching (manual stretching, penile extenders, hangers) without guarantee of length gain. As for surgical techniques, only sliding technique can add some Erect length but this technique requires penile prosthesis (starts from 1.45):