The estimated is far off, T3 hacking filaments were under 30m for sell orders last I looked. Estimated on all event items was far off, unless it's been updated today. I've found that it takes about as much time to scan and mark cans as it does to just hack them all. Using all the soct III relic boosters makes it almost impossible to get out of range of a can unless you slingshot through the boundary.
