I'm surprised nobody has done this yet. Conservative drop.

Classifieds at the time of posting: http://backpack.tf/classifieds/?item=Kritzkrieg&quality=11&tradable=1&craftable=1

1x32

4x34(One is spec ks)

2x35(Both spec KS)

1X36(Also spec KS)

3x37(one is PRO KS)

Sellers:

http://www.tf2outpost.com/trade/23469620 33 Keys(Young)

http://www.tf2outpost.com/trade/23401893 34 Keys(3 Days unsold)

http://www.tf2outpost.com/trade/21817284 34 Keys(2 MONTHS unsold)

http://www.tf2outpost.com/trade/23468497 34 Keys(Young)

http://www.tf2outpost.com/trade/23465137 34 Keys(Young)

http://www.tf2outpost.com/trade/23352931 34.5 Keys(5 Days unsold)

http://www.tf2outpost.com/trade/23197492 35 Keys(Spec KS, 2 Weeks unsold, slightly poorly bumped)

http://www.tf2outpost.com/trade/23438913 35 Keys(Spec KS, 1 Day unsold)

http://www.tf2outpost.com/trade/23434602 35 Keys(Spec KS, 1 Day unsold)

http://www.tf2outpost.com/trade/22895251 36 Keys(1 Month unsold, poorly bumped)

http://www.tf2outpost.com/trade/23251420 36 Keys(1 Week unsold)

http://www.tf2outpost.com/trade/22801413 37 Keys(1 Month unsold)

http://www.tf2outpost.com/trade/23011533 37 Keys(Spec KS, 3 Weeks unsold)

http://www.tf2outpost.com/trade/23230339 37 Keys(1 Week unsold)

http://www.tf2outpost.com/trade/23417126 37 Keys(2 Days unsold)

http://www.tf2outpost.com/trade/23056562 37 Keys(3 Weeks unsold)

Can't seem to find any sales at all, so if 34 Keys doesn't sell how could 35-37?(Not to add that there's a PRO one going for 37) However because of the lack of lower sellers 34 Flat should be fine for now.

Additional Proof/Counter-Proof/Constructive Criticism/Feedback is always appreciated.