I do not use a check mark. But have ran the first 10m in an identical way (meaning effort, angles, stride length and rhythm) about a gizillion times this season…i can hit a mark around 10-12m from the start of the approach 90% of time…
Now, 2 years ago, i couldnt do it 10% of the time…
But, Mr. Stanley and i also recommend a check mark about 10-15m from the start of the approach. After that mark the athlete will be into full running (tall and bouncy). This “middle” portion of the approach is also critical for consistancy. The final 4-6 strides however should be down to visual guidance.
Steering will not solve all problems. Approach accuracy is down to (repition of the controlled phase AND visual guidance). The TWO must work together for a successful run. After all, steering needs to happen without a great loss in speed. This can’t happen if the controlled phase of the run is SO OFF that you have to drastically change your strides to hit the board (this would show good steering, but a BAD approach.
Over the course of the season for a more advanced jumper, the controlled phase may vary 1-2 meters but not much more than that. This is good, because it enables you to practice it over and over again…