Hey there,
The art for the bags can be a little bit misleading as well as the labeling.
Due to how weight reduction works on these bags, we have in order a:
Mining Bag - Weight Reduction: 100% of Weight
Standard Mining Bag - Weight Reduction: 60% of Weight
Lesser Mining Bag - Weight Reduction: 40% of Weight
Greater Mining Bag - Weight Reduction: 20% of Weight
While this is a simple example for the mining bags, I think this expands to other areas too. I would say most people don't actually realize a lesser mining bag is better than a standard at first glance, and that there's a difference in Mining Bags and Standard Mining Bags.
With this in mind I'd recommend the following name Schema:
Mining Bag
Minor Enchanted Mining Bag (Weight Reduction: 60% of Weight - current “Standard”)
Enchanted Mining Bag (Weight Reduction: 40% of Weight - current "Lesser")
Greater Enchanted Mining Bag (Weight Reduction: 20% of Weight - current "Greater")
The current system is very confusing for most people. A minor name edit for each bag catagory would help players intuit and understand this better. Most people don't even realise a 'standard' bag is a upgrade from their normal mining bag, and worse yet, some might think the standard is a upgrade to the lesser.
Confusing right?