Proof below.

Sales:

http://www.tf2outpost.com/trade/16363522

-wanted at least 7 buds

-dapper+sf grenade+f sniper+f sticky+pink v. facade+1 key bought planets crones+sf rl (2): http://www.tf2outpost.com/trade/16701990

-~5.9 buds

http://www.tf2outpost.com/trade/16362500

-b/o of 7.5 buds

-sold for cloudy dapper (very outdated), the bubble offer was his

-5.9 buds

http://www.tf2outpost.com/trade/16274613

-b/o of 7.5 buds

-dapper+few keys bought scorching bat pot (unpriced): http://www.tf2outpost.com/trade/15983486

http://www.tf2outpost.com/trade/15738561

-wanted 7 buds

-sold for shadows dapper (unpriced)+few keys

http://www.tf2outpost.com/trade/15529579

-dapper+1 bud sold for kaw glasgow (unpriced)

http://www.tf2outpost.com/trade/16646709

-bought ghosts chief+3 buds: http://www.tf2outpost.com/trade/16623986

-~6.2 buds, no overpay as offered

http://www.tf2outpost.com/trade/13545435

-b/o of 6 buds

-took a while to sell for 5.4 buds

http://www.tf2outpost.com/trade/14302067

-wanted 6 buds

-dapper+2 buds (sold the noble for that) bought duped beams aa: http://www.tf2outpost.com/trade/14415929

-5.5 buds using clean one, prolly not super accurate but just to support the 5.4 sale

Sales: 5.4, 5.5, 5.9, 5.9, 6.2

Quick suggestion using sales. Overpay and original prices used.