Also what I find awkward is what to put under the "Name" box because that's the link title to the URL when the comment is posted. You would of course naturally put your own name, but that wouldn't be the keyword you'd want to use, right? But I found that putting in your actual keyword under "Name" definitely appears spammy. I only leave comments for blogs in my niche, but the name thing is the dilemma I'm having.
Well first i would put my own name in but quickly changed that to a keyword or 2 word phrase, i found that to take any heat off of how your placing a keyword and it looking obvious that if you post a real comment and not just a couple of words then it seems less spammy looking putting in the keyword where you would normally put your name. Plus if you get it right, your keyword may end up complimenting their post if its nice and relevant.
send out as many e-mails every day you should get at least some replys i have done this and have been contacted back, it does work and takes time.