Classifieds at the time of posting this suggestion.

Unsolds are based on how long the listing has been up; Listing has been up 5 days and item been in the sellers inventory for 8 days? It has been unsold for 5 days.

The age of the listing(s) are shown in the screenshots rather than the last bump.

x1 for sale at 11 Refined - http://i.imgur.com/3VI37Kk.png

Unsold for 14 hours http://backpack.tf/item/4912635554

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x1 for sale at 11.11 Refined - http://i.imgur.com/FaC3yUG.png

Unsold for 2 days http://backpack.tf/item/4931628284

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x1 for sale at 11.77 Refined - http://i.imgur.com/tmAYMSI.png

Unsold for 9 hours http://backpack.tf/item/4805599980

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x2 for sale at 12 Refined - http://i.imgur.com/FTySxiS.png

Unsold for 22 hours http://backpack.tf/item/4881761737

Unsold for 5 days http://backpack.tf/item/4945649567

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x3 for sale at 13 Refined - http://i.imgur.com/OKdZwxa.png

Unsold for a few minutes http://backpack.tf/item/4933134296

Unsold for 20 days http://backpack.tf/item/4815405381

Unsold for 22 days http://backpack.tf/item/4876825441

Buyers suggest 10.33 Refined and below is the quicksell/buy price - http://i.imgur.com/Ku2aFOq.png

The seller at 11 Refined is indeed young but the seller at 11.11 Refined is not which in my logic justifies a drop to 11 Refined. That coupled with the fact that buyers suggest 10.33 Refined and below is the quicksell/buy price.

Outpost sellers below 13 Refined.

Non.

Outpost unsolds at 13 Refined.

http://www.tf2outpost.com/trade/28345448 - 13 Refined - Unsold for 4 days.

http://www.tf2outpost.com/trade/28340178 - 13 Refined - Unsold for 6 days.

I am excluding all trades on Outpost that haven't been bumped for 1 day or more.