In short, I was confident but I did not have the mouse in hand. It's done, and I do not regret it. Very good grip, the coating is pleasant and does not sweat. That is ergonomic.
A detail of which I get used however: the click sensitivity is not uniform. It is easier DPress clicks with the wheel and out. This disturbing when one no longer has the weight of the hand to click because the mouse is vertical or almost. I got used to long and I no longer think.
A find that relieves my long day professional clicker.