I have a Yamaha Clavinova CLP-535. It feels heavy which is more noticeable when playing chord sequences. So I measured the key down weights using a technique for acoustic pianos. Around middle C the key down weight is about 87 grams. A medium weight acoustic piano has a key down weight of about 50 grams. (Down weight is felt before the key damper lifts) When I contacted Yamaha Support, they replied it was within specification.
Is there a reason why digital piano keyboards should have such a heavy down weight compared with acoustic pianos?