Not wine specifically, but have been making quite a few raw meads for a little while (as in only water and honey, no yeast) although I'm by no means particularly experienced. Secrets? Well my main strategy is to keep a "continous" brew. As in using a little of my last brew in any new ones even if its finished fermenting for the most part...I just give it a shake lol. This helps speed up the fermentation by a few weeks and helps ensure it will ferment somewhat correctly. That, and not worrying too much and letting nature do its course.
That said yeasts can make a big difference so if you're not happy with how a batch turned out, don't use that to continue and start anew. I found that wild yeasts gave my mead such a bright and flavorful experience compared to my single strain...although my abv isn't nearly as high. But maybe I just got lucky the first time haha.
That said, you can never make enough and they make great gifts
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"In the dark and the deep there are truths that can always heal"