msd or mopar hei ?

I ran an MSD setup for one month and got stranded in the parking lot at work with a burnt up box, installed a mopar electronic conversion with an orange box and have not had a lick of trouble for 2 years......I also had trouble with the run on condition they speak of in the MSD manual. I had to put in a cut off to the unit to prevent run on after the key was turned off. I don't think I wired it up incorrectly but, It did burn up and I never returned it for failure analysis. It smelled pretty burnt to me:) I vote for the mopar stuff with a chrome box for higher revs if needed.