I noticed the edit of the review so I changed my comment. 🙂

75g hasn't been considered "light" in a long time, that outweighs the original Viper Ultimate from years ago. But that's not necessarily a deal breaker, what is, is the dumb shit Chinese Omron 60s it uses; the worst of the worst, hated by all. They feel terrible, and they always fail rapidly. Chinese 60s fail faster than even the 20s which is why Logi used those in the GPX instead of 60s. The 20s are also atrocious and a crime against humanity, they're so bad I took apart my GPX to replace them with Kailh 8.0s. That mod was a pain in the ass, but worth it to get away from Chinese Omrons.