Putting a band of tape ,whether it be masking tape, cello tape, electrical tape,duct tape best, will save you a lot of money,. When your in a rush to get on the water, some times if you don't tape up ,and check your mast gap the worst can happen, split mast top and rips in luff pocket ,by pinching sail.By all means you can cut out the crack or split and turn your mast from a 430 to a 415 ,but mast will never fit snug again, and will not last as long as it should.
Tape on mast joint is like screw driver and bung, make sure you do this before getting out there.
One last thing ,is pick your tape up and put it in the bin after use.

We all stuff up once or twice,then lesson learnt .

