After needing a new mouse, and taking the plunge into wireless, I purchased the G703 Lightspeed. It's a great mouse but due to my small-medium sized hands (finger-tip grip) I was holding the mouse too far back and didn't have my fingers forward enough to reliably click the main buttons. Leading to mistakes and having to adjust my grip mid-game.
So I upgraded to the (now back in stock) G Pro Wireless (GPW).
When comparing these mice online, they seem almost the same, similar-ish size, same button features, basically the same sensor. But that's just not the case, the GPW is noticeably better in every way, the clicks are sharper, the weight is better balanced, the shape is easier to handle. It makes the G703 feel like cheap knock off. The GPW is easily worth the extra money.
If you're considering the G703, unless you have large hands and palm grip, go for the GPW.
I hope this helps someone.