Classifieds: http://backpack.tf/classifieds?item=Pyromancer%27s+Hood&quality=6&tradable=1&craftable=1&australium=-1

Screenshot of top of Classifieds: http://imgur.com/a/R52eD

<Sellers>

[16.11] http://backpack.tf/item/3477931158 - http://backpack.tf/u/76561198223840892 - Listed about an hour ago, BOT

[16.11] http://backpack.tf/item/3432355883 - http://backpack.tf/u/76561198179117861 - Listed a day ago, BOT

[16.11] http://backpack.tf/item/3331107850 - http://backpack.tf/u/76561198179117861 - Listed a day ago, BOT

[16.11] http://backpack.tf/item/3329664909 - http://backpack.tf/u/76561198223840892 - Listed about 11 hours ago, BOT

[16.22] http://backpack.tf/item/3489572332 - http://backpack.tf/u/76561198317401621 - Listed 5 days ago, BOT

[16.66] http://backpack.tf/item/3365778897 - http://backpack.tf/u/76561198116610719 - Listed a day ago, hasn't been bumped since.

Clear to see that 16.11 should be an easy change. Buyers start from 16.11 however inactive buyer at 16.11, so buyers actually starts from 16 refined.