Last suggestion went horribly lol (didn't know about mini, then forgot to change the value)

*NOTE BP.TF HAS BEEN VERY BROKEN FOR ME LATELY, and you might need to do some manual work to find the backpack histories, apologies*

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http://www.tf2outpost.com/trade/26728843 (duped time warp front runner)

-Traded on August 10th-

buyer's bp: http://backpack.tf/profiles/76561198059656061

seller's bp: http://backpack.tf/profiles/76561198074924284?

duped time warp front runner = 48 keys http://www.tf2outpost.com/trade/26719295

(bought the front runner with spec ks scatter + dead president thirst blood + australium bruisers)

-Traded on August 9th-

buyer's bp: http://backpack.tf/profiles/76561198059656061

seller's bp: http://backpack.tf/id/_naknak_

The maths: 34 + 18.5 + 1 = 48 keys ---------> duped front runner

Therefore, the ooze pomade prince should be 48 x 0.9 = 43 keys

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Again, sorry if you had to check the bp histories manually, I just traveled to China and internet sucks :P

PS: if you still don't understand the thing then I'm sorry, this is the "max" I could do right now...