Hi William, I don't think anybody can provide 100% guarantee on reconsideration because Google didn't provide any confirmation saying "You don't any unnatural links now". I got unnatural link email in three website, I have started deleting all looks which looks unnatural to me. Still after lots of link deletion I am getting unnatural link email in two website. Google is not sending unnatural link email in third website, they have not provided in confirmation of unnatural links but I am not receiving any email in that webmaster account. My ranking is back for this website and I am happy now.
If any webmaster doesn't reply to your link removal email, you can mention that out in your reconsideration email. One of my website Dealsbell.com has 50k+ backlinks from sidebar of williamsburgwarriors.org, I have contacted webmaster several times but I didn't get any response then I have mentioned out this website's name in my two reconsideration request. This website is no longer in Google index, Google has removed this website from search and its also not showing in my GWT backlinks profile.