With this method I have 26 backlinks right away. I can do them all in one day or I can spread them out over a period of time. Now, 26 backlinks isn't a huge amount so I don't believe that is too many. If you do a large amount, sometimes you'll get a little slap from Google but I believe that 26 is ok.
Anyway, I made this video to explain it. Check it out and let me know what you think: