I think we can speculate that people that are good at double arm swing bounds are better at accelerating, and people that are better at single arm swing bounds do better at top speeds (where the GCT is lower and strength is less of a factor). Speculation, but a good one IMO.
1) For whatever reason, I could always keep my foot dorsiflexed when I was doing LLLL or RRRR bounds. But whenever I try to do LRLR bounds, I fail miserably. Also the arms play a big role in this - in the LRLR I get my armswing all messed up and I start to move really weird. If you have the arms somewhat straight, you're going to fail. If you have the elbows bent, you will be able to keep the rhythm. Again, in my experience.
2) What's up with the armswing, by the way? Some people can do single leg bounds really well with a double arm swing, yet when I try to do them I start to rotate around, so I have to do them like Eddie is doing them in that video - single arm. This is also true for 1-leg jumps - if I use a double arm swing I start to rotate to the left, so I use a single arm swing to compensate for that. Not to mention that in a double arm swing jump the jumping leg gets sooooo overloaded from all that "weight" being applied onto it... I guess if I were stronger I could use a double arm swing but I'm not. So IMO a double arm swing jump is more powerful, a single arm swing is "quicker".
I had a dream that I was a navy seal lost in afghanistan with a machine gun and no communication.. horrible dream, death everywhere. fuck combat. everyone needs to relax.