Actually...not apples and oranges.....a random formula is a random formula.....only the result is different.....One drops you in a room....the other drops a seal.........but with seals...there is not only the random formula that decides whether you actually get a seal or not.....there is an additional random that determines what kind of seal you get....I was mostly on about the actual randomness of the drop rate of a seal...not the kind of seal.....