Cases have been reported in which the "repair" required the use of a sharp rigger's knife! You can prevent the dreaded hourglass by setting a jib in addition to the spinnaker.
Izehlo zixeliwe apho khona ukulungisa kufuna ukusetyenziswa kwemela ebukhali begcisa elilungisa isikhephe. Ungathintela iglasi yentlabathi ecaphukelekayo ngekumisa ijib ukangeza kwiseyile enkulu engunxantathu.