Is it must mine, or is the 5x5 cube of the original brand abysmal? It is very very had to turn a layer using only your finger (impossible for the third/middle layer) and the whole thing's damned slow. The same goes for the 4x4. In fact, as far as the latter is concerned, if I try to cube fast with it and turn layers quick, cubies begin to come off. This takes away all enjoyment that 3x3 and 2x2 cubes provide, and it's so impossible to solve either under five minutes, not because I don't have the skill but because it's physically impossible. So my question is, am I just unlucky or unskilled enough to use them correctly, or do they suck in general? I'm thinking of getting a 5x5 v-cube on holidays if I get the money, will that be better?