I read tons of testimonials before buying it, but after using it to sub to others with a HQ vid in the same genre as my featured vid, I have near zero followback. I did the same thing with twitter, and the followback is HUGE. I'm thinking YT changed something since all those testimonials were written. Do any of those techniques still work? Is there any point in sending private messages to people or sending them your vids? Do they ever see those messages? Does followback of some kind still work on YT?