I'm no expert on the different parts of the hides they used or in the tanning process, but I've had the same experience with my gloves. Some of my gloves have a tighter, less porous grain and some others have a softer more suede like feel to them that's not caused just by a lot of use. I don't know if that's a property of that part of the hide or the way it was tanned. Of course, gloves that are on the dry side will really soak up petroleum jelly or whatever conditioner I use. I remember seeing one of those baseball documentaries and Billy Werber talking about how he specifically wanted his gloves made from the belly of the hide because that was the softest part. He must have been as hands on with his gloves as Ted Williams was with his bats.