I like Polar

Polar works with Cashew, all credits to Cashew

Sellers: - https://gyazo.com/8b4032863591e5f32c18c3e198924147

https://backpack.tf/item/7215880499 - Young @ 12 Keys

https://backpack.tf/item/8065007571 - 16 Days @ 12 Keys

https://backpack.tf/item/7367742959 - 1 Month @ 16 Keys

Sale 1)

https://backpack.tf/profiles/76561198872796421#!/compare/1583798400/1583884800

https://backpack.tf/profiles/76561198088038722#!/compare/1583798400/1583884800 - Bulky

Sale 2)

https://backpack.tf/profiles/76561198872796421#!/compare/1586476800/1586649600

https://backpack.tf/profiles/76561198439248806#!/compare/1585785600/1586563200 - Sold for a Festive Spirit Taunt: I See You (No Mini) + 7 Keys

Sale 3)

https://backpack.tf/profiles/76561198283719000#!/compare/1583712000/1583798400

https://backpack.tf/profiles/76561198088038722#!/compare/1583712000/1583798400 - Untrace

Sale 4)

https://backpack.tf/profiles/76561198061779536#!/compare/1583625600/1583712000

https://backpack.tf/profiles/76561198283719000#!/compare/1569715200/1583712000 - Sold for a Vivid Plasma Tippler's Tricorne (>11) + ~5 Keys - Caps at Buyout

Buyout was (16) Keys - https://bot.tf/stats/listings/46N5QVLZ

Sale 5)

https://backpack.tf/profiles/76561198442349647#!/compare/1588204800/1588291200

https://backpack.tf/profiles/76561198817647410#!/compare/1588291200/1588377600 - Sold for 8 Keys, Low Compared to Buyers

Sale 6)

https://backpack.tf/profiles/76561198394345037#!/compare/1588377600/1588464000

https://backpack.tf/profiles/76561198817647410#!/compare/1588464000/1588550400 - Sold for (11) Keys

Sale 7)

https://backpack.tf/profiles/76561198799983169#!/compare/1586390400/1586476800

https://backpack.tf/profiles/76561198017164647#!/compare/1586649600/1586822400 - Untrace

Sale 8)

https://backpack.tf/profiles/76561198337734785#!/compare/1588118400/1588204800

https://backpack.tf/profiles/76561198142619531#!/compare/1588118400/1588204800

https://bot.tf/stats/listings/MVQN938E - Sold for 11 Keys + 30 Ref = (12) Keys

Sale 9)

https://backpack.tf/profiles/76561198142619531#!/compare/1588204800/1588291200

https://backpack.tf/profiles/76561198253835120#!/compare/1588204800/1588291200 - Untrace

Sale 10)

https://backpack.tf/profiles/76561198389129235#!/compare/1588896000/1589068800

https://backpack.tf/profiles/76561198385160220#!/compare/1588896000/1588982400 - Low

Sale 11)

https://backpack.tf/profiles/76561198385160220#!/compare/1588982400/1589068800

https://backpack.tf/profiles/76561198282873040#!/compare/1588896000/1588982400 - Untrace

Credits to Xergoyf for the Following:

Sale 12, 13, 14, 15, 16, 17, 18, 19 and 20)

https://bot.tf/stats/item?def=30958&q=5&ef=Vivid%20Plasma&craft=1&aus=0&ks=0&source=browser_script

https://imgur.com/a/9vqU8Hl - Sold for (9) Keys, (10) Keys, (10) Keys, (11) Keys, (8.5) Keys, (8.5) Keys, (9) Keys, (9) Keys and (11) Keys

Sale 21)

https://backpack.tf/profiles/76561198311968999#!/compare/1591142400/1591228800 - Sold for An Aces High Bunsen Brave (7.75) + 6 Keys = 13.75 Keys, Caps at Buyout

Buyout was (13) Keys - https://bot.tf/stats/listings/429337EQ

Sale 22)

https://backpack.tf/profiles/76561198203811797#!/compare/1592265600/1592352000 - Sold for (10) Keys

Sales we have are:

8.5, 8.5, 9, 9, 9, 10, 10, 11, 11, 11, 12, 12, 13 and 16

16 is definitely too high here

Calling 8.5 low due to buyers

Keeping 9 in-range as we have lots of data points

Thanks =)