Wow, I have had mine for a while there are so many blades coming with them now. But honestly, my 3 blades do anything my mandoline can’t do. I’ve done lasagna with zuke strips from the mandoline for ages now before going keto/lchf, I did the 40/30/30 Zone plan for years. So started using the mandoline for lots of things.
I hope you get it all sorted out. It is easier if everyone is at least in the same page, maybe not the sentence but on the same page makes cooking & meal planning so much easier.