Rob, I made a change to the updated timerboard.
Somehow you didn't put the 1n4007 diode on the board..I added a few solder pads to my board layout so I could put it on the bottom of the board, and added a new spot for the +6volt wire out to the powerboard.
I was getting glitches and missfires at the plug..so I figured it was coming from the feedback voltage thru the HV board...I was right, so I added the diode..works now without a missfire..

John