I was going to wait till tomorrow morning to put the old ones back, but a storm is blowing through and its cooled off a lot. So, I put the old ones back in and she fired right up and stayed running. So, the MSD's are going back.
The only good that MSD stuff is for is to look pretty on a shelf.
If you do get new coils, keep the better (i.e. "working" one) of your old coils as a back-up. That way if in the future say you've accumulated some miles, you're driving, and have similar issues with a coil you can at least swap it out to get you by.