Thumb Score: +16 Amazon [amazon.com] has 5.4″ Smith & Wesson CK400 Frame Lock Drop Point Folding Knife for $8.79. Shipping is free with Prime or on $35+ orders. Price $11.20 lower (56% savings) than the list price of $19.99 $5.73 lower (39% savings) than the previous price of $14.52 *Previous Frontpage Deal at $8.80 with…