https://backpack.tf/profiles/76561198272038643#!/compare/1596412800/1596585600 - sold for 8 keys

https://backpack.tf/profiles/76561198337734785#!/compare/1596153600/1596240000 - can't trace zol's sale, however I have intel from a mod comment that there was another seller was selling at 8, so zol probably undercut them before selling meaning his sale was also most likely 8. https://backpack.tf/item/7956657226 - 24our7even was the other seller, prolly also sold for 8.

https://backpack.tf/item/7917919286 - was dumped to another bot soon after, can't trace that sale either. Was gambled a bit after.

8 flat should be fine here.