I still think the strange original is a bit high and it's been 3 days since price change, i think it's time for it to come down again.

Proof

these trades have been offered Black bills (valued at 9 keys 3 ref - 1 keys)

http://www.tf2outpost.com/trade/10119088 Got offered black bills

http://www.tf2outpost.com/trade/10013618 Been offered black bills

http://www.tf2outpost.com/trade/10026121 Got offered black bills and 9 keys

http://www.tf2outpost.com/trade/10022893 been open for 5 days best offer would be a white bills

Unsold after 2+ days

http://www.tf2outpost.com/trade/9873823 Up for a week hes been offered 9 keys only recently

http://www.tf2outpost.com/trade/10069704 Up for 4 days his best offers is 10.5

http://www.tf2outpost.com/trade/10098442 Offered 10 keys 2 days ago

http://www.tf2outpost.com/trade/10117363 Been up for 2 days with a b/o of 12 keys noones offered

http://www.tf2outpost.com/trade/10147358 Been offered 9 keys and 10 + 2 rec

http://www.tf2outpost.com/trade/9576560 trade been up for 3 weeks sill hasn't sold

http://www.tf2outpost.com/trade/9916742 trade been open for a week, been offered 9 keys (or 11 but was a week ago)

http://www.tf2outpost.com/trade/10107807 2 days selling for 11 keys, no takers

http://www.tf2outpost.com/trade/9854509 no offers in a week

http://www.tf2outpost.com/trade/9383709 Got offered 8 keys a day ago nothing else for a couple of days

http://www.tf2outpost.com/trade/9976281 Been a week, stil unsold. Got offered 8 keys, and other item offers

http://www.tf2outpost.com/trade/9534621 Been up for 3 weeks best offer he's got is 13 keys in the past week and hasn't been offered anything in the last 5 days

http://www.tf2outpost.com/trade/9785997 hasn't even been offered anything for it in 5 days

http://www.tf2outpost.com/trade/9971784 Selling for 12 got no offers for a couple of days

http://www.tf2outpost.com/trade/10016413 He's been offered no higher than 10 keys in 5 days

http://www.tf2outpost.com/trade/10105912 b/o of 11 keys nothing even offered, been 2 days

These next links are proof that the strange original is actually selling for 9-10 keys

http://www.tf2outpost.com/trade/10136103 Up for a day sold 2 within 10 hour for 10 keys

http://www.tf2outpost.com/trade/10137873 Selling for 10 keys, no buyers but an offer of 9

http://www.tf2outpost.com/trade/10159672 Sold for 9 keys after 2 hours of the trade being open

http://www.tf2outpost.com/trade/10099681 Selling 2 for 10 keys each, first one got sold on the first day

So as you can see it is fairly easy to find a strange original for 10 keys and not many are selling for 11, every now and then some will sell for 9.

More proof to come below!

http://www.tf2outpost.com/trade/10155671 no offers after 7 hours

http://www.tf2outpost.com/trade/10134905 got offer of 9 keys

http://www.tf2outpost.com/trade/10152104 Been open for 10 hours no offers

http://www.tf2outpost.com/trade/10122798 b/o of 11 nothing been offered in the past day since it was put up

http://www.tf2outpost.com/trade/10072461 Bought one 3 days ago for 10 keys

http://www.tf2outpost.com/trade/9546446 Dragon.Bl down the bottom offered his S. Original for 9 keys which has 3 strange parts on it

http://www.tf2outpost.com/trade/10047875 Bought for 8 keys 3 ref 3 days ago

http://www.tf2outpost.com/trade/10150653 Bought one for 10 keys 9 hours ago

http://www.tf2outpost.com/trade/9422995 As you can see SuperMarioSunshine sold his for 10 keys

http://www.tf2outpost.com/trade/9546446 Dragon.Bl offered his Strange original which has 3 strange parts on it for 9 keys

http://www.tf2outpost.com/trade/9845893 Got offered 10 for one

i think i have shown more than enough evidence to prove my pricing