I dont think there is need for L blueprints if blueprints use rare material instead, could make crafting so, when you get a level, you can unlock some prints, some would be lootable, found, and learned from crafting, and they would use rare materials instead of blueprint being limited(rare), would have same effect, i belive it would be more fun, its kinda weird that knowledge is lost when you do it for some attempts, make 100 QR prints take 1000 attempts and be 100% tt return, with higher chance to proc better items, more durable, better stat rolls, could be that gun also does higher avg dmg with higher chance, and maxed skill 100% success.