I think the way Research Kits are going is great (Research Kits consume, also paper and the studied item are deleted), because it’s logical that once you unmount an item, it doesn’t work anymore.
However, I think Blueprints shouldn’t be destroyed once learned. I mean, when you look at your lessons, do they disappear? As it is just a blueprint, it should be kept once learned.
What do you think about this?