if you shorten the hair, then change your bait later you may find your kicking yourself.
i tie 3 or 4 rigs with hairs of different lengths, one to accommodate corn or a single boilie up to a long hair that will take a double 20mm boilie.
then all you have to do is snap on a different hook link.
any how it only takes half a shake to make one up on the bank to exactly suit what you are doing at that particular time,
and if your a tightwad like me you can break it down again and save the hook (after sharpening) and any rings, swivels or putty for another day
oh BTW ad of the day is for Barbie Mega Blocks????? go figure