So that mouse is £130 here in the UK, donbt know weither its worth that kinda money. I have the Razer Deathadder mini corded mouse and apart from the know issue with the scroll wheel sensor (more on that below) this is a good mouse, specially considering its £30.
Regarding the scroll wheel seonsor, over time it appears to develope a fault. As in when scrolling the movement of whats ever windows/application youe scrolling will change direction, as in "bounce" -
https://duckduckgo.com/?q=razor+Mouse+Scroll+Wheel+Jumps+Up+and+Down&t=ffab&ia=web (see below for a shot of the sensor on my RDM.)
The RCP "appears" to have the same scroll sensor, but the RCP one is enclosed with a blue cap. So would in theory, could suffer from the same issue. However I see a small PCB under the right habnd side of the wheel? and the item on the left side is just a bearing/support?