Bought a double clicking G703 for cheap. Swapped in a lighter battery, GM switches, and fixed scroll wheel. Pretty in love with it now. : r/MouseReview
Buy Repair Parts Mouse Wheel Board Encoder Decoder Mouse Scroll Board Compatible with logitech G403 G703 Mouse Accessories at affordable prices — free shipping, real reviews with photos — Joom
Got a G703 with scroll wheel issue for 20€ at an auction, I put a piece of paper between the scroll wheel and the encoder. Works like brand new and saved about
Logitech G703 Scroll Wheel Issue - (SOLVED with a HAMMER) - YouTube