I personally think it would be a great QoL change if we could lock a specific random roll into our collections. Say you got a god roll Blast Furnace, you could spend some materials and have it forever in your collection to pick up (unless you want to switch it out with a different roll). You already acquired that roll so why not be able to save it in collections. If anything it would be nice to be able to pick up curated rolls from the collections instead of not being able to grab the weapon at all. Not everyone wants to hoard weapons in their vault. Let us save our good rolls in case the meta switches up. If you have a weapon that was not worth using in a previous update but after a update its a good weapon, I'd assume you would've deleted it right? Even if it was a great roll. If we could've saved that roll in our collections, we could get it again because we already had it. Just a thought. Edit: Here's another thought (may be a crazy one) [spoiler]What if we combined the Collections and the Vault? We can store all the items we want into the collections instead of the vault. There could be drop down menus for each item of you have multiples. That way it would be a neater system than the vault and you can access it from anywhere. If you have rolls for different activities, you can just pull the certain roll from your collections without going to the tower or using an app. If I was good enough with photoshop I'd link a picture to what I'm explaining. I hope this makes sense... [/spoiler]