I don’t think anyone wants to reply b/c with younger folks you want to keep it natural as possible.
Show them how to run correctly (drills…working on only one thing at a time) and you will not nearly need as many cues as you think. Keep it simple.
You are already on the right path by coming here…searching archives, getting the products, asking questions…
Also, consider the other parents may be using different cues as well. Talk about complicated… if so.
I noticed you registered here this year…have you seen the thread charlie on sprinting? Blast from the past…
http://www.charliefrancis.com/community/showthread.php?2416-Charlie-on-sprinting