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
The Logitech G303 Shroud Edition's shape is world-changing
Logitech G302 VS G303 Comparison Review - video Dailymotion
OG G303 vs G303 Shroud Edition comparison : r/MouseReview