I've been trying to add some backlinks to some of my youtube videos with NHSEO. i've started creating them about 2 weeks ago on 6 videos. So far the results are not to great. Only one video has raised 2 positions in serps, the other had all decreased. Anybody used NHSEO on yt videos before? Did you had any success? Are the backlinks created using NHSEO to crappy for yt videos?