I wonder exactly what it is that makes some companies' drums sound more realistic or "live" than others? Is it e.q., effects, method of sampling? Is this a choice by manufacturers as to how they make the drums sound, or is it a technology that some have and others do not? Is it the way they are arranged or used in styles? It would seem that Yamaha has more money than all the rest combined, so should be able to make the drums sound any way they want.
DonM