Dandyist, my approach to PE was much the same as yours. I joined here, did a lot of reading, and started the Newbie Routine as a leap of faith, reasoning that nothing I was doing was much more strenuous to my dick than somewhat more vigorous and systematic masturbation. My first signs of success were much like yours, as well.
Actually, one of the VERY early signs for me was one day in the shower. Shampoo on my head, so eyes closed, I reached down and found more down there than I was used to. Sweet!
Thanks for sharing your story. It was from reading accounts like that, that helped convince me to at least give PE an honest try.