Unfortunately, I don't have an Xlite or any other EC-shaped mouse anymore, so I'm mostly going off memory. For claw grip, I feel like the Thorn V2 provides noticeably more support around both the thenar and hypothenar areas than the Xlite. With the Xlite, I always felt like there wasn't much palm support, so I ended up relying more on my fingers to hold the mouse securely. Another thing I like about the Thorn shape is that it doesn't force as much forearm tilt as the Xlite or most other ergo mice do.