I also switched from the g502 to the pro wireless and have been using it since 30.08.2018. I am absolutely thrilled with the mouse. The size of the pro is a little smaller, but with my large hands it is very comfortable to use with a mixture of palm/claw. The low weight and the well thought-out shape are a big part of it.

No, unfortunately this is not provided for.

... The technical specifications of the mouse are very convincing. However, I want to hold the mouse in my hand before I buy it.