Yellow is my range bag one. But I also have that very same clay/umber colored one (as well as "can't find me" black). The clay/umber one is the one I have with my ammo when loading mags at home. Great device! I haven't timed them to verify, but I am pretty sure the yellow one is about twice as fast as the other two colors. Definitely faster. Way, way faster!* * Made up facts posted by an anonymous member on an online forum, and they may be dangerous to your decision making or conclusion drawing. They may contain fabricated statements and illogical distortions of the truth. These distorted "facts" are known by the State of California to cause cancer in imaginary laboratory animals.