When ordering a Model #11 in either 4-1/2" or 5", is the additional length/cost included as a chargeable option, or are there still 5 options left to choose from... I found this one scanning thru Ebay and it's being advertised as "a seven option knife". I counted six options w/ out taking the 5" length into consideration, and I'm wondering if the 5" is open to interpretation as an option.