i dont recommend large mice like deathadder because they limit your abilities unless u have a huge hand
ive 18x10 hands and im switching between ec2/za12/ms intellipro (intellipro for desktop usage only, its too big)
I have a deathadder chroma and an EC2-B divina. I haven´t used the deathadder since I got the EC2-B. The EC2-B is less heavy, feels more comfortable (to me) and I don´t have to install any software to change the mouse settings...
I'm using zowie za-12 but I don't like it, you should buy logitech g305 and lithium batterys for a good weight of mouse, this is a good mouse and a cheap one, if you want something that is not cheap and very good you should buy logitech g pro.
Both are wireless btw.
i've had a hyperx pulsefire fps but it was too big and heavy for my grip so i kinda struggled to aim precisely with it and i've recently bought a cooler master mm710 and so far it feels great, definitely improved by that change, btw my hand is 18.5/9cm and i use a claw grip