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(title tags, h1s, content recommendations, etc.)All of the above sounds like manually applied changes to me (as opposed to template changes). So, why don't you just do it in a natural way - make the changes live as soon as you implement them. Given that G* bot cannot collect all 100% of your pages at once, the time it takes them to re-index all pages will give you some additional randomization which should make it look even more natural.