I think what is important to realize,even if you read Liam's post, is that this is a wild variation. As with fish, depending on collection locale, you can see a range of variety. I can tell you, they were priced appropriately for what they are. Regular tigers do not have that coloration on head and tail.
Anyone who has dealt with any of these wild type shrimp and has a lot of experience can tell you, the color of the head and tail as well as body type can be heavily impacted by how settled they are into the tank as well.
Many of this particular batch of super tigers got blueish bodies, with a bright red/orange head and tail. Some have the white shadow bands behind the dark stripes.
You guys should be careful of copying and regurgitating other people's posts/blogs and making determinations of what you think something is or isn't based on lack of first hand knowledge.
The one that Nubster pictured actually has better head and tail coloration than the one on Liam's site.
Additional pictures from the same group of shrimp: Rachael's Super Tigers (Pics!)