Hello, I have a similar hobby at the moment with you because I've been building my own e-nail as well and I'm even using the same pid as you. I figured you could be a huge help and I could return the favor (use xlr haha) but I am looking for the exact specs I would need for the ssr. I'm setting up my controller now but I'm thinking about just using the new "extended life" d-nail coil. I really hope to exchange some information. thanks for your time.