I usually do a round of low/mid/high left leg only, then go low/mid/high right leg only. Then I do 1/2 round high/mid/low left, then the last 1/2 I do right leg
Then I do a round of leg check then teep same leg, alternating left and right
Then I do a round of leg check then roundhouse same leg alternating left and right
Then I do a round of Teep then roundhouse opposite leg, alternating left and right
Then Ill go left leg only 1 kick, then 2, then 3, then 4... up to ten and back down to 1, then the right leg same thing... more speed then power on this drill.
Then Ill work knees, but thats a whole other thread
Hope this helps