I don't think DIM and TIM are the same thing. As I understand it, TIM is what happened to a transient of greater slew rate than the amplifier can accommodate. As such, it should never happen in any amplifier if the bandwidth, both open and closed loop were correctly designed. Even if the amplifier was badly designed, a simple filter at the input would stop it. It seemed to be an issue with unfiltered preamps that had MHz bandwidths and power amps that didn't. In any event, no normal signal off an LP or tape would trigger it, and CDs are band limited. I suppose a record click or unfiltered tape recorder bias might be sufficient, as might an unfiltered NOS DAC, but frankly, why worry about badly engineered sources when there are plenty of well engineered alternatives?
I've never been convinced that TIM was ever a real problem that needed fixing, or indeed, measuring.
S