the hair is part of the hook link if i want to shorten it i use tube.
have used this method for a long long time..
mind you my p b is only 7lb but you have to remember i have only ever caught 5 carp
http://uk.wrs.yahoo.com/;_ylt=As6fYMoAMLEUK7GA_yoWaiNLBQx.;_ylu=X3oDMTBjcWlmbGY5BGwDV1MxBHNlYwNzcg--/SIG=12bd1sl41/EXP=1129581425/**http%3A%2F%2Fwww.fishandfly.co.uk%2Fknots%2Fdoublegrinner
there you go