Have gone silver 12. Sizing is anxiety inducing at times, but whilst super comfortable and easy to remove, the sizing ring nevertheless leaves indentations where the sensors will be. My wife's fingers are smaller due tried the 11 and still had to take it off due to pins and needles. Feels super comfy and I'm pushing away the thought there should be a bulge either side to be sure it's tight enough. I think any muffin tip effect means the ring is too small. It didn't twist or move but felt like it wasn't there. Ideal? Silver looks nicer than gold and figured scuffing will show up less.