Stohr double shifter cable vs single cable

My car chassis #20 and my brother's chassis #9 have the old-style double push-pull cables to operate the shifter. In 7 seasons of racing, we've each had 1 failure.

Later cars went to a much heavier single cable.

I have all the parts to switch to the single cable system.

Is switching to the single cable an improvement?

Thanks in advance.

Stohr double shifter cable vs single cable