Hi guys, I've just bought this piano brand new from Thomann (really great shop to buy music instruments) but don't know what to think. I don't have many experiences with digital pianos and I've learned that Casio keyboards are generally more noisy comparing with Yamaha and I'm fine with that but one of the keys is extremely clunky on back stroke. What is even worse it is E4 key. Sounds like keyboard or hammer is touching some plastics when returning to it's default position. Like there is no damping on that place. There is another one which is a bit more noisy than rest but not as bad at this one. The rest of the keyboard is OK. I've made a video of that so what do you guys think ? Return and replace ? What are the odds to get another one with the same issue ? It's kind of expensive to send back to Germany. I'm not sure if it's a defect or not. Is this rare thing or normal for Casio keyboards ? The noise is pretty annoying during play and I can hear it even with headphones. Also it's not pleasant once the finger leave the key. Everything works flawlessly but this is pretty distracting. Thanks for your opinions...