With spinner millions lit, and a normal, working spinner, the key for long ball times is to make sure the lock is lit at the spinner by shooting the Crazy Bob saucer and never collect the spinner lock. By this I mean that you shoot the spinner with the lock lit and then always move the glove to the rollovers rather than the matrix, so that the ball falls into the rollovers and then down to the right flipper for a either a drop catch and new shot at the spinner or dead bounce to the left flipper for a shot at the spinner.
This not only multiplies the spinner value by completing the rollovers but you get a safe feed back to the flippers because you are never collecting the lock, but using it instead to stop the ball. In conjunction with the hold bonus spikes award, the spinner millions can get ultra massive.
Quoted from Law:On a properly set up (read mean) JM, the spinner millions can be lucrative but not crazy. You generally just won't have long enough ball times to get the multiplier maxed out and crank on the spinner.