martinibuster - 9:22 am on Jun 17, 2010 (gmt 0)
There is no right or wrong way to do this.
Danny Sullivan frequently complains about receiving link request/link buy emails. I get link request emails from other SEO sites. Matt Cutts even receives emails seeking link exchanges (probably from backlink scrapes). I am inclined to believe there is a wrong way to do it.
But I'm just quibbling. :P
Your way of scaling up is aggressive but I believe you when you say it's effective because I know you speak from from experience and I value your opinion because of that. Thanks for sharing. ;)