yeah, i have noticed that with the sails, too... except in really light wind it doesnt inflate the jib enough to move it... i have not even had to try to find parts for mine yet... luckily it's all in ok shape. I do not even know where i would start to try to look for spare parts, but from what i have seen the traveler on the solcat looks to be fairly unique, so you might need to cahnge out the whole track and everything. I have also seen a ton of solcats on craig's list. some of them with extra parts. maybe you could find a junker one for sail and pick it up for spare parts?