Been using the G203 shape for years now. Just got a G302, and lemme tell you, I can aim a whole lot better. 19.5 x 9 fingertip for reference. : r/MouseReview
Amazon.com: Logitech G203 Wired Gaming Mouse, 8,000 DPI, Rainbow Optical Effect LIGHTSYNC RGB, 6 Programmable Buttons, On-Board Memory, Screen Mapping, PC/Mac Computer and Laptop Compatible - Blue : Video Games
Logitech x Shroud G303 Review - Better Than Superlight? - YouTube