DO NOT LEAVE THE KEY IN THE ON POSITION WITH THE ENGINE OFF!!!!!
Yeah, it will fry the ignitor. Been there, done that. It doesnt happen instantly, but it does happen.
The SMT6 works great for me. The only thing I cant get it to do is advance timing. It hesitates and stumbles badly. But then again, I actually only want that off boost. It does a wonderful job of pulling timing on boost.