With most racing classes, maximum whisker pole length may be dictated
by class rules (percentage of "J" dimension). If you are racing in a
non-spinnaker class, you should check your class rules for the maximum
whisker pole lengths allowed.

You don't know the difference between a whisker pole and a spin pole Horvath.
No way you race. NO WAY.
Whisker poles TELESCOPE for various headsail sizes.

RB