Quoted from MrBigg:I'm not familiar with cobrapin, but if you are using dc, you will still probably need to install diodes across each coil to prevent a burn, and be sure to put in line fuses, or trip relays, just in case you make some mistakes along the way. These are your friend to prevent long pulses, or over current on your coils.
Yeah, add diodes per the image I added to this post.
Change you default pulse in the MPF config until it hits to your satisfaction.