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Following ethical white hat practices against a non white hat is a sure way of fail. There aren't that many stories of how white hat prevails,and if they do it's usually on a non-competitive keyword like toilet seat covers. Sadly, in a high competitive market on the good old wild wild web, you do have to step out of what a community deems "ethical" and go into what works. Fight fire with fire is all I can say. PM if you want some suggestions.

I've reversed the domain migration and am waiting for results. Already the old site is starting to gain ranking after 3 days. How should I go about migrating this content in the future?