This is not so much a remix as it is an add-on to the excellent riser by SpectreGadget. I found my AMS could rock back and forth when loading spools so I made side pieces that can be glued on to stabilize the AMS and prevent the rocking. I attached these with the AMS in place to ensure they were snug. They should not bear weight but exist only to prevent the rocking motion.
I recommend printing in the provided orientation for a better surface finish that matches the original riser better. They can be printed flat but they will likely be more noticeable.