Dave- First thing I would do for your Harry Potter piano is to give it what the dealer most likely didn't do which is prep it properly. Go through a check list of things like checking for burrs on capstans, lubricating the key pins and knuckles and capstans, easing keys, aligning parts, basic regulation and leveling strings/hammers. I bet it plays way better from just doing those things. Then if you want to play with geometry and weight, go for it. My experience with Chinese pianos is that while inconsistency and design flaws are major factors, basic prep helps immensely. The term "Choose your battles" comes to mind. Lisa
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