Laughing my ass off at these attempted manipulations down here. Take a look, it's good reading.

http://www.tf2outpost.com/trade/19829387 B/O of 5.5 (1 week)

http://www.tf2outpost.com/trade/19973832 B/O of ~5.3 (3 days)

http://www.tf2outpost.com/trade/19950470 Sold for KaW Cannonball (5.1)

5.1 * 0.9 =4.59 (rounding to 4.6)

Histories:

http://www.tf2outpost.com/item/440,2618133081,611,5

http://www.tf2outpost.com/item/440,2618133069,817,5

http://www.tf2outpost.com/trade/19377125 Sold for Phosphorous Honcho's (5.3)

5.3 * 0.9 = 4.77 (rounding to 4.8)

Histories:

http://www.tf2outpost.com/item/440,2618133081,611,5

http://www.tf2outpost.com/item/440,2573974267,391,5

Let it ride.

(P.S., I've hit my 20 open suggestions limit XD)