Bought a couple 2packs when they came out a few years back (I think MF had 2packs on sale for $10). I liked their size. They were very unobtrusive and I too usually placed them under the headstock. I hate the look of big tuners left clipped on. My Snark looks like an alien landed on my soprano. I did find them a bit hard for my not so great eyes to see the micro tuners. The Snark is certainly clear for me, not just the larger size letter, but also with the bars leading up to in key or past in key and the color change. I had no problem with them rattling and I believe they are accurate enough. I was surprised though when I just realized recently that all four of my micro tuners were gone. I can only guess that if you use them long enough, in the process of putting your uke in and out of the case, they can loosen up just enough to fall off. Perhaps they were just "borrowed" by someone. Don't know, but one by one, they have all disappeared. If I see a good buy on them again, I would repurchase despite some issues.