Will have to give it a try. I have the hi-viz yellow jacket too but it hasn't dulled yet.
Tosh let us know if you notice any change in their ability to repel rain after being washed.
My major complaint is after a few hours in a steady rain they just soak through and your gear underneath gets wet. I like their light weight and how they can compact down. But I'm starting to reconsider using them for longer trips where getting wet and not being able to try out your gear is a bigger problem. May go back to a vinyl type rain suit for that purpose. Then there is the tendency of those fibers to attach themselves to every piece of velcro they come in contact with. Happens a lot with my jacket on the cuffs, flap over main zipper, etc.