Ok so I was looking at my flexmods again and I killed some diodes. Then I remembered the whole flap about this. I also just happened to watch the EEVBLOG on bypass caps. Well folks the flexmods are fine. Add a 10uf and a 0.1uf cap is parallel with the power to the board and your problems vanish. That board is very sensitive to power supply noise it seems. Once I did that I could not pop any diodes or make any kind of spikes at all. I then after added the pangolin protection thing as well. Mystery solved as far as I am concerned. My switching cheap breadboard supply sucks.