Robert,
My understanding was that the 1st three sides each started with a different kick, until you got to the 4th side, it was a repeat. So they changed it so that each side starts with a different kick.
It is also a nice flow, not that the old way did not flow also, but roundhouse to spin rear works nicely.
Now a general comment, not to you Robert, but in answer to other questions or observations regarding Kicking Set 1.
Other characteristics:
1st Side - different maneuver for each kick (varies range)
2nd Side - All right leg kicks (pattern step-through, shuffle, shuffle, shuffle)
3rd Side - All left leg kicks ... and the order of kicks is the exact opposite of the 2nd side; (so if you learn one, you have learned the other and the pattern is step-through [in this case a spin], shuffle, shuffle, shuffle)
4th Side, all step-throughs ... or "chasing the opponent across the room kicking him as he runs."
I also require waist high kicks.
Consistant height stances.
and a timing break following the kick, as v. after the maneuver.
step through, pause, kick, pause, shuffle, pause, kick, pause, etc.
... is not an acceptable timing pattern for my students. I try to stress this as a fighting set in which you learn about RANGE.
So step-through front snapping ball, pause, left front cross-over right knife-edge, pause, shuffle roundhouse kick, pause ....etc., would be what I stress to my students.
Balance, power, focus, etc. are also stressed, but for fighting I want them thinking depth of attack and what maneuver is appropriate. Just an individual choice as Mr. Conatser pointed out. TAKE NOTES is great advice.
-MB