If my suspicion about the labels being reversed is correct, and 32AW is a multiplier for FAW, then 6/8 is perfectly fine.  FAW would be 6*RRD, and 32AW would be 8*6*RRD.
That also would better explain the observation that setting what they think is 32AW to zero causes instability.

As for the tool I'm working on, you can get an idea of how it works by looking at my fork of amdmeminfo.
https://github.com/nerdralph/amdmeminfo
I modified it to show runtime strap values.  My tool doesn't just read them, it writes them too.
I believe Yurio is ahead of me in this process with his Windows miner now being able to do runtime timing modifications.
https://github.com/zawawawa/GatelessGateSharp