I'm not on my third kilt where the center pleat is coming un-sewn. Can anyone give me any ideas as to what I can do differently so I don't tear the fell stitching on my kilts?

It has happened on a crappy ebay kilt, my SWK MacTavish standard and my SWK heavyweight irish saffron.

any help would be greatly appreciated!

(not wearing a kilt is not an option..I'm working hard to be 100% kilted)