Amazon Customer5.0 out of 5 stars It does actually work. January 2, 2019 Colour: GoldV3 Verified Purchase Slapped it onto my LTD EC-256 and played decently hard at practice. Even with new strings on it hardly fell out of tune, and when the strings finally stretched out I didn’t have to worry about tuning for the rest of practice. Kept checking after every song and it was perfect. Doesn’t look bad on the guitar.

I am not entirely sure why people say it doesn’t work. It’s not a locking trem but for 3+3 headstocks it’s definitely the more feasable answer besides a roller bridge.