The main problem I have with 7 step approaches is that it needs to be included only if they can perform in meets better or the same as an 8 approach. With most HS programs barely running with a shortage of track coaches how many athletes should be doing 7 steps? I would argue that 7 steps is equal to the amount of of left handed vs right handed people. 8 steps for everyone (99%?).
His velocity is better with 7 steps but his is more consistent with 8 steps over 39. Also at hurdle three he is in a better rhythm. The velocity is not much better at 7 yet but practicing 7 gets his first 3-4 steps better and it’s easier to go down and work turnover for 8 with you have the strength for 7.