rainbowgirl28 wrote: I thought everyone knew this
Not EVERYONE. I didn't.
What I did was keep try to everything exactly the same (same run, same grip, same takeoff, same technique), each time that I moved one flex up.
Riding the pole into the pit without inverting would break this rule. I'm not saying which idea is better. Mine is just one alternative to consider. Your mileage may vary.
Side note: If you have the same (or better) wind speed from the same direction, then all the better. Often, an increase in tailwind would be a good time to move up a flex. (And then in the future, without the tailwind, you retain that same confidence in using that pole flex - because you now "know" the pole.)
I realize that moving up from a 14 footer to a 15 footer is a little more drastic (more "unknown") than moving up a single flex on the same pole length, but I think the same principle applies.
As long as I was landing WELL INTO the pit (at least to the middle of the coaches box - but it wasn't marked back in my day) on my jump previous to moving one flex up, I had strong confidence that by upping the flex, I would still land in the coaches box.
The secret is in doing everything the same, with the CONFIDENCE, COURAGE, and GUTS that you will land safely.
The fear of failure should NOT enter your mind. If you "hesitate" due to fear, your technique and/or speed won't be as good, so you'll fail for that reason.
This quote by English essayist Joseph Addison is applicable ...
HE WHO HESITATES IS LOST ... self-doubt is a prelude to disaster.
Swtvault spelled this out quite well in the "What's the difference between a 5.50 and a 6.00 vaulter?" thread.
Kirk