Ripstop nylon is a great material, but it does come with some minor catches that can be easy to trip up with if you aren't aware of them.
Namely it is the actual colour of them, how much it can vary from batch to batch, and how it can change over time. Things like optical whiteners are some of the 'most fun', which can do weird things and lead to 'blotchy' look if you're ever trying to use one as a rear-lit backlight. But the 'white' in the nylon can break down at different rates, and lead to subtle colour casts from different lights, and even new stuff from the same line can vary slightly from different rolls made by the same manufacturer.
So do remember to check your relative colour balance between each piece you get, and be careful when adding more or replacing some of your ripstop nylon with new material. And then remember to double check things before doing any 'big projects' if you haven't taken the time to carefully go over your gear in awhile. "White isn't always 'white'" is a simple little thing can end up being easily forgotten, and then leave you wondering why there is a slight colour cast on only part of a photo.
Canon EOS 7D | EF 28 f/1.8 | EF 85 f/1.8 | EF 70-200 f/4L | EF-S 17-55 | Sigma 150-500