I was looking at some videos about siamese cube. And all the siamese cubes were different. Some of them was glued in the U and L layer (the three cubies in the U L). And another one, was glued in the E, U and L layer (all the pieces in the left layer without D L). So the point here, is what is a real siamese cube, or can it be like the owner want to? (By the way, I know it is a stupid question, so you don't need to mention it).