In all honesty, I do really love the 3 stat mechanic. But if I were to add another stat I mostly think Charisma because my understanding was that Presence worked similar to Dex, Body worked as strength and Constitution and Mind worked for Wisdom and Intelligence. I do also really like the trait d100 idea, it really helps with character choices. I'll probably end up using something similar for my characters. Though back to Charisma you could probably use a combo of Presence and Mind for Charisma. Mostly I just didn't understand progression or character customization like leveling up or classes. That and weapons felt missing. If we get average stats (assuming 30 30 40) characters will sort of feel the same. Looking over it again, I didn't realize Act was the number of actions I had. Had I been aware I probably wouldn't've kicked my own ass. Though I do worry, wouldn't the best strategy be stockpiling as many actions as possible and flail about until something happens? I would personally have Actions scale with level and replace Act on the character sheet with something like Charisma and Move Speed could just be Presence/10 rounded up. But as I said before, truly I do really like the system. The main problem I had was keeping track of everything. I would probably create a companion sheet with checkboxes or a slider to track instead. As I said though, truly lovely system the simplicity is brilliant.