Straycat1911
Those rules are gold, especially the one about Blue Falcons.
Being labeled as a Blue Falcon is one of the worst things to happen to you.
Honestly, the rank of Specialist (E4) is either a terminal rank or a temporary rank. Our Army is an up or out organization; either you get promoted to the next rank or you get put out. Many soldiers do most of their entire 6 year enlistment as a Specialist before their enlistment expires.
The ranks of E1 thru E4 are based on time in service; stay in the number of months or years and you get the rank pinned on. But making Sergeant/E5 requires promotion points and vacancies (the Army needs you) in your specialty.
The average soldier enlists as an E1 and is an E2 by the time he gets through basic training. He may or may not be promoted to PFC/E3 during his AIT, but will definitely get promoted as soon as he gets to his first duty station.
Company commanders get a certain number of time in grade waivers each month or quarter (I forget which) that they can use to promote junior enlisted (E1-E4). So unless a new soldier is seen as a dirtbag, you use the waiver on your new privates and privates first class to promote them as soon as possible.
So many PFCs become Specialists within their first year of service. Then spend the rest of their time never working towards making sergeant.
But there are "high speed/low drag" Specialists that as soon as they make E4, they are already on track and working hard to make Sergeant/E5 in the minimum time, which I think was 3-4 years time in service back in the day.
So you'll see Specialists with 4, 5 and 6 years in service and Sergeants with 3-4 years in. That's the picture in the link with the cobra surround by the mongoose pack (mongeese? lol).