My replaced G Pro Wireless (batch 2013 firmware version 15.2.26) developed the double-click issue within two months. Now I've got two G Pro Wireless with the double-click issue. I ordered replacement switches and plan on following BeardedBob's Youtube video to get rid of some of the weight and replace the switches.
As a side note, my replaced G Pro (wired, non-hero) also developed the double-click issue. That makes four Logitech mice that have failed me in the last two years.
When playing I don't rage, slam my mouse, or otherwise.