Sellers at/below 2.33 ref

http://www.tf2outpost.com/trade/22992740 1.88

http://www.tf2outpost.com/trade/23011698 2

http://www.tf2outpost.com/trade/23009484 2

http://www.tf2outpost.com/trade/22980135 2

http://www.tf2outpost.com/trade/22980067 2 (has multiple)

http://www.tf2outpost.com/trade/23008650 2

http://www.tf2outpost.com/trade/23007217 2

http://www.tf2outpost.com/trade/23003589 2

http://www.tf2outpost.com/trade/23001924 2

http://www.tf2outpost.com/trade/22993426 2

http://www.tf2outpost.com/trade/22912086 2 (has 2)

http://www.tf2outpost.com/trade/22992305 2

http://www.tf2outpost.com/trade/22949076 2-2.33

http://www.tf2outpost.com/trade/23011627 2.11

http://www.tf2outpost.com/trade/22954543 2.22

http://www.tf2outpost.com/trade/23001941 2.22

http://www.tf2outpost.com/trade/22883526 2.33

http://www.tf2outpost.com/trade/23008030 2.33

http://www.tf2outpost.com/trade/22992842 2.33 (has 2)

http://www.tf2outpost.com/trade/23007673 2.33

http://www.tf2outpost.com/trade/22992199 2.33

http://www.tf2outpost.com/trade/22995077 2.33

http://www.tf2outpost.com/trade/22886045 2.33

http://www.tf2outpost.com/trade/23005469 2.33

http://www.tf2outpost.com/trade/22994520 2.33

http://www.tf2outpost.com/trade/23004817 2.33?

http://www.tf2outpost.com/trade/22951965 2.33 (has multiple)

http://www.tf2outpost.com/trade/23004947 2.33

http://www.tf2outpost.com/trade/22984684 2.33

http://www.tf2outpost.com/trade/23005229 2.33

http://www.tf2outpost.com/trade/22979849 2.33

http://www.tf2outpost.com/trade/22975576 2.33

http://www.tf2outpost.com/trade/23009938 2.33

http://www.tf2outpost.com/trade/22970000 2.33

http://www.tf2outpost.com/trade/22999166 2.33

http://www.tf2outpost.com/trade/22986035 2.33 (has 2)

http://www.tf2outpost.com/trade/23008349 2.33

http://www.tf2outpost.com/trade/22941337 2.33

http://www.tf2outpost.com/trade/22993496 2.33

http://www.tf2outpost.com/trade/22953670 2.33

http://www.tf2outpost.com/trade/22963331 2.33

http://www.tf2outpost.com/trade/23003513 2.33 (has 3)

http://www.tf2outpost.com/trade/22833241 2.33 (see trade comments)

http://www.tf2outpost.com/trade/23004079 2.33

http://www.tf2outpost.com/trade/23003498 2.33

http://www.tf2outpost.com/trade/22976824 2.33

http://www.tf2outpost.com/trade/23002916 2.33

http://www.tf2outpost.com/trade/22980999 2.33

Unsolds above 2.33

http://www.tf2outpost.com/trade/22989256 2.33-2.66/ bp.tf price (1 day)

http://www.tf2outpost.com/trade/22987542 2.33-2.66/ bp.tf price (1 day)

http://www.tf2outpost.com/trade/22983804 2.44 (1 day)

http://www.tf2outpost.com/trade/22971241 2.66 (1 day)

http://www.tf2outpost.com/trade/22981127 2.66 (1 day)

http://www.tf2outpost.com/trade/22976222 2.66 (1 day)

http://www.tf2outpost.com/trade/22982813 2.66 (1 day)

http://www.tf2outpost.com/trade/22980474 2.66 (1 day)

http://www.tf2outpost.com/trade/22987379 2.66 (1 day)

http://www.tf2outpost.com/trade/22963887 2.66 (2 days)

http://www.tf2outpost.com/trade/22964066 2.66 (2 days)

http://www.tf2outpost.com/trade/22959332 2.66 (2 days)

http://www.tf2outpost.com/trade/22966065 2.66 (2 days, has 4 but sold none)

http://www.tf2outpost.com/trade/22955084 2.66 (2 days, seems to have had a potential buyer but still not sold)

http://www.tf2outpost.com/trade/22904478 2.66 (6 days)

http://www.tf2outpost.com/trade/22921177 2.66 (5 days)

http://www.tf2outpost.com/trade/22916765 2.66 (5 days)

http://www.tf2outpost.com/trade/22849006 2.66 (1 week)

http://www.tf2outpost.com/trade/22874021 2.66 (1 week, has 4 but seems to have only sold 1)

http://www.tf2outpost.com/trade/22879005 2.66 (1 week, has 3 but sold none)

Classifieds as of time of posting

http://backpack.tf/classifieds/?item=Thirst%20Blood&quality=6

8x 2 ref

17x 2.11 ref

1x 2.22 ref

Rest are 2.33 and up

Conclusion

2.33 ref can be found easily, while 2.66 seems to be struggling to sell. 2-2.33 ref is becoming increasingly common and not a quicksell anymore.