Congrats! That looks great. It's easier to grate whe its softer, but it's no harder to grate than a hard cheese even when well cured. I can grate a hard cured old bar on a box grater in about 20 min while watching tv, enough for 4 months I guess.
I've been using 100% CO soap + washing soda + borax in my HE washer for over a year with no issues, in fact it's less gunky than it was wit commercial detergents. I only use 2 Tbsp per load, some times add Oxy, sometimes remember to add vinegar...
This powder is also really handy to travel with. I keep a ziplock bag of powder, a scoop, & a stain stick in my suitcase. Works in all washers so far, and perfect for hand washing, it rinses clean so easily.