first time pricing the new items :D

sellers below 10 keys (most are fairly young)

http://www.tf2outpost.com/trade/27314168

http://www.tf2outpost.com/trade/27312728

http://www.tf2outpost.com/trade/27313260

sellers @10 keys

http://www.tf2outpost.com/trade/27312415

http://www.tf2outpost.com/trade/27309933

http://www.tf2outpost.com/trade/27301552

http://www.tf2outpost.com/trade/27295458

http://www.tf2outpost.com/trade/27271219

unsold @11 keys

http://www.tf2outpost.com/trade/27297011 - 2 days

classifieds support a drop (a lot of sellers here are also selling on outpost)

https://gyazo.com/1c6948af5d1ae95a995c71afe8c31cae

Conclusion:

10 keys obviously seems to be the most common trading point, while most sellers below 10 are young/poorly bumped and sellers at 11 seem to be almost non-existent.

going with 10 keys flat