Well, I can report my experience... I am not a huge straight whisky drinker. And the SF wash that I run is NOT very palatable to me after a few days, and still pretty damn harsh after 2 weeks. But I took a fifth, put it on some JD chips on 8 April, and two days ago, prior to reading this thread, I thought it was still purty nasty, and I was gonna give it away to a guy I don't like at work. Then I read this, nuked it 4 times over 2 days, added 1/4 tsb of brown sugar, a few drops of vanilla (don't have any beans ATM), and tonight... NOT BAD!! I'd sip it on ice!
Now, maybe it just needed 14 days to settle out on its own; I can't say, cuz it's the oldest thing I have made to date. But the process makes sense to me, so I tried it. Perhaps what we are reading here is... progress?
Remember, 50 years ago, heads were just more moonshine, and turpentine simply increased the quantity you could sell. I'm pretty damn proud that I can make something better than I can buy, and it's all thanks to the fine folks here at HD.