I have often heard the phrase "Tack On Headers" and supposedly this
tactic is used to help you recognise a shift. What I dont understand
is how much of a header is a HEADER ? I often notice when I'm being
knocked and if I sail on a little longer I may be lifted again so ask
myself was that a header I should've tacked on ? I often wait till I'm
nocked persistently e.g. compass heading changes so that I'm sailing a
persistently lower coarse and then tack but I feel like I've missed
the lift by this time. Should I just tack as soon as I notice the
header or wait a little to see how it plays out ? I would really
appreciate your opinions on this one.

Thanks,

Shawn.