[KenWittlief]

good start - now draw out what it takes to do each one separately

if you need incentive - if your 2X ball arm is damaged while playing, you have lost your 50 point hanging function too

thats called a single point failure - if one device does both functions, then one single failure in the arm cost you BOTH functionalities (another reason for the Golden Rule)

think about what it will take to do each function separately. You will find the complexity of the two devices is much lower than the single dual purpose one.