i am wanting to send my main off to have a second set of reef points added, but would hate to spend the $$ if the sail is worn out. I noticed a couple trips ago that the sail was kind of "baggy" at the bottom. yesterday I remembered to take a picture and take a closer look. it appears as though the sail was made that way. it has seams that taper out to allow the sail to have a "belly" (sorry for the terminology, or lake thereof). The sails are from north and were apparently bought several to 5 years ago. I know the jib is literally like brand new...
at any rate, can anyone tell me what the purpose of this would be?
the pictures is probably far from the best to tell overall condition, but if anyone has any thoughts on the condition of it, please share.

at any rate, can anyone tell me what the purpose of this would be?
the pictures is probably far from the best to tell overall condition, but if anyone has any thoughts on the condition of it, please share.
