I was not very impressed with E-A7 keys. Actually, I was quite disapointed with them, maybe my expectations were not realistic. But I did not like it. I actually think M-Audio controler is better, but indeed noisy and springy... But at least they have a deeper range and the size is about standard.

Anyway, I will try to get to try the X500 in a short while. They had one in a shop close to where I'll be in two weeks time. And hopefully, they will have more keyboards displayed, so I can compare.

Of course it is a matter of taste and preferance to a point, so subjective. But I also liked a lot the action on XP60... Long time ago.

Thanks for explanation on samples. Yes, I knew this, it makes sense. Korg it seems to indeed the most advanced engine, but the fact it makes available for user to go very very deeply in editing makes the whole difference. In here, because the entertainers use a lot of speicfic samples, the Korg is brand of choice by far.