Just a quick thought. You play the exact opposite of me. I take too many edges. My swings are like the ones you describe, 4+ buy-ins an up on any given session. I have recently taken a new line to not play TPTK as hard, if at all. I would like to get to a point where I'm just winning, slow and steady. Your slow and slightly upward stack building is in most part, the TP situation you discribe. The question is do you want to change that, because with more edges, comes more swings. From the other pit, not so fun. GL.