Okay, so I think I might be losing my mind over this, just warning in advance. ...
I have had a casio px-330 for 2 months and been very happy with it. When I first got it, the action seemed medium-heavy. (Something I liked about the keyboard). Now lately, the keys seem lighter to me, I can't say with 100% certainty, but they actually seem much lighter.
Can it just be that a have developed more finger strength and the keys are just normal now?
OR
Could it actually be that for whatever reason the keys have internally gotten easier to the touch.
This just seems so weird, it feels like a different keyboard than it did just a week ago, let alone when I first got it.

any insight would be greatly appreciated.