I've had Jackson Matrix blades for a number of years, mainly because of the longevity between sharpenings. I know they're flatter than some traditional blades but they've always worked fine for me. I need new blades and when I called the fitter they said they currently only have the Matrix RXS blades in stock in my size, and very few other blade options currently too. I could try to find blades online, however the idea of the RXS appeals as I could just replace the runners in the future, but I'm wondering about stability, issues with the screws, etc. Any experiences please?