FWIW, 60g of malto is about 1/2 cup and 30g of fruc is about 3 tbsp. I verified these based on my products and haven’t used the scale since.
I also bought a bunch of cheap plastic containers to hold one bottle’s worth of mix in. Rather than breaking out the malto, fruc, measuring cups, etc each morning, I just open the container and dump it into a bottle half filled with warm water. Shake for a minute, add a Nuun tab (for me - you could use another electrolyte), and some ice cubes.