Thank you for the detailed response, It's a great help when people also explain why something does or doesn't work in some way.
So basically, to summarize, for a Sprint M8 I can only use the official dev unlock, and even the temporarily root methods don't work, but after I use the dev unlock I can run firewater to get S-Off?
I am going to have to install a rom with root access after I use the dev unlock though and not be able to rely on the Stock rom through aren't I? I can still get a rom that is 100% the stock rom, just with root access though, right?
Would I have to worry about anything or an OTA resetting me to S-ON? Especially if it can fix the exploit that currently allows for S-Off?
Sent from my HTC device