msd or mopar hei ?

I think the term is “burn in”. That is what they call seeing if electronic devices are going to fail.
The theory is if it works for a year, it probably will work forever.

My feeling it that getting stranded sucks.
One wrecker ride is one to many for me.
Most people can afford to carry a spare “Chrysler” box. Just like we carry a spare resistor. Junk yards just about give them away.
These days better safe than sorry.
The FBO site uses plug and go as a selling point.