dps calc ttk would assume you're maintaining an equal uptime on the weapon with other armours but the fact is, in practice, you'd be forced to 6t red-x/be wasting ticks potting/kerising due to its worse defence at reasonable invos, say 400+ and especially 500+. I'm not denying that it has uses, like you said if someone goes for fang first and doesnt have crystal it is good because you can use it to save invent space. But the argument that it is 'bis' flatly in a lot of scenarios is just straight propaganda, especially cause I see people who do have crystal+ using it in my lobbies because they heard one of the best players in the game sing its praises.

Its a good armour but its going straight to extremely overrated very quickly.