Speedlink Decus Respec Review @ Vortez
 

In the case of the Decus Respec, the consideration is that it is a highly shaped mouse that caters for your entire hand. Though that is nothing new, it does seem like a design consideration that is being seen less often. Likely because more people are taking up the esports hype (with more of a bias towards neutral shaped/ claw type mice) rather than buying products that are more suited to their natural play style.

http://www.vortez.net/review.php?id=1234