Rather than start a new thread, I thought I'd post here first. If I don't get an answer, I'll create an OP.
If I sound gun-shy, it's because my only experience with rooting has been with a Sprint Samsung Epic a few years ago. Since that isn't a GSM network, I haven't dealt with carrier locks or SIM locks before, which I've been made to understand have nothing to do with rooting.
I thought I'd take my time rooting my S4, but I've just learned Samsung's about to push out 4.3 with KNOX and the only way to disable automatic updates is to root.
Can our resident experts send me to a thread or post with easy-not-to-bollox instructions?
The only thing I'll truly need from a ROM is the ability to stop automatic updates. Sound tweaks would be nice but aren't necessary. I use an external DAC anyway.