I have thought about putting reefing cringles in one of my jibs
. As I see it, the biggest advantage is that you can have one less sail onboard. On a 27 foot boat, that might make a difference. Make sure the clew is not cut too high, otherwise the reefed 'sausage' will be scooping air. If the reefed position is your storm sail, make sure it is constructed to take a beating.