Originally before using the e.z out, I did drill all the way through the bolt with the bit size designed for the e.z out to work successfully. I wanted to save the threads and the hassle of retapping the block, but I realize now that would have been 10x easier than getting this e.z out to back out. It looks like in order to do this on my own, I will either need to use a dremel, or try the draino trick otherwise I'm probably going to have to leave it up to the professionals unless anyone else hears of or knows of more tricks of the trade to remediate this situation.