I doubt the h1 tags had much to do with ranking for these keywords. I bet you would have had the same results if you just put "poker seo" first in the title tag, then wrote an article about baking cookies and bolded that exact phrase 3 times in the article. As for the secondary keyword, well its just a matter of putting that exact keyword phrase just one time on your page whether its in an h1 tag or not and you will still be up there since your one of only a few websites that has that exact phrase.
If you want some genuine results, just take the h1s out and see what you rank for in a week. Then you know exactly what those h1s are doing for you.
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