Yeah thinking about it, I'd rather have safestrap on there anyway. I'll be giving this a shot later today hopefully, will report with personal results.
Edit: Well I got everything done without a problem, other than the little soft-brick from forgetting to remove any xposed frameworks, but after fixing that I had no trouble going from rooted wpnomo 4.4 to 4.4.2 while preserving my root and write access, was simple and successful 100%.
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AT&T HTC Inspire 4G
Black Hole Slushy ICS