Do the random mods stack with the pre-set mods?
Yes, you could craft a Blood weapon, get 4% life leech from the pre-set, and get another 9% from a random mod, giving you a total of 13%, more than any magical or Rare item could ever get otherwise. In fact stacking like mods is the whole point in many recipes, such as the Blood Weapon #1, where the recipe will always have 35-60% enhanced damage, and you hope to get something from the Kings or Merciless (or both) families in addition to that. Again, you will often want to run the same recipe several times to get a good roll of pre-set and random mods. It’s much like Imbuing, you can get a great item the first try, but it’s very uncommon, and you’ll usually need several tries to get lucky.
