Logitech G502 Lightspeed Wireless Optical Gaming Mouse with RGB (910-005565)
Logitech G502 HERO Review - RTINGS.com
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Logitech G502 X Lightspeed review | Tom's Guide
Does your G502 feel heavy even without any weights? Try placing 2 as shown. It moves the center of gravity, and makes it feel lighter. : r/G502MasterRace
Logitech G502 Proteus Spectrum Weight Tuning System - YouTube
Lightspeed ships with 4g weights, but you can't physically put them in the mouse. : r/G502MasterRace