Great review, you couldn't be more spot-on skinmech. I've used my Action for only a couple of days, but gotta say I love it! Rather than change my hand speed or voltage, it is nice to adjust with the inserts. This was the only thing I missed after putting the Neuma hybrids down. I moved on when I needed a harder hit, or direct drive and I have those now (Bishop, NeoTat) and my Dragonfly's bridge that gap in between. I finally feel like I have a complete set of rotaries for any job. Please add a rigid insert in the future, it would only be a bonus to those looking for a direct drive-like hit. It is a little heavier than I'm used to, but I kind of missed the weight. Not too light, not too heavy, very minimal noise and little vibration, all the best of why we use rotaries. I will definitely add a black Action to the arsenal in the future. These are my experiences and opinions, only meant to help others in finding what they prefer. Isn't that why we're all here?