[quote=@ihinka]
Weren't Weres supposed to either be able to fully shift fast, or partially shift?
[/quote]

The bit in the werewolf description is describing the abilities of the Alpha Wolf. The alpha can partially shift OR shift in a matter of seconds. This only applies to the Alpha because they're, well, the alpha. So Blaine would have this capability of choosing whether she wants to shift fast, or partially shift since she's the alpha.