Simplified check for singleton speeds vectors.
Simplified check for singleton speeds vectors.

jcrist/pydy,jcrist/pydy,skidzo/pydy,oliverlee/pydy,jcrist/pydy,oliverlee/pydy,jcrist/pydy,jcrist/pydy,skidzo/pydy,Shekharrajak/pydy,jcrist/pydy,Shekharrajak/pydy,Shekharrajak/pydy,Shekharrajak/pydy,oliverlee/pydy,skidzo/pydy,skidzo/pydy,jcrist/pydy