Linen, what kind of pool do you have? OK, I have done a lot of research on this, but will ask for a straight answer now. From what I have read, I need to put a doughboy liner in a doughboy pool. The reason being that a 28' doughboy is not exactly 28' (for some reason they measure from outside rail to outside rail). Also, when you buy a doughboy expandable liner, you dont actually buy a 48" or 52" or 54". The liners are a one size fits all as long as you have the measurement of the length of the pool. So if you buy say an aftermarket liner, and you buy a 48", it may not fit right. Has anyone found this information to be correct? If I could get away with buying a aftermarket expandable liner, that would not wrinkle, that would be preferable, because like I said, I am not sure if the pool will last 5 years or 10 years or longer. But I dont want to spend $900 on a doughboy liner if I can get away with a lower cost aftermarket liner for comparable quality and that will stretch appropriately. I hope that rant made sense to everyone.