I think me and you are running the same setup atm. I'll take your word for it, because this has been very reliable for me, and if nothing major has changed, I might just flash Agat's new 0.6.0 kernel, and keep it like this until/IF Sprint/Samsung release JB.
This is my best setup yet. And looking forward for AGAT 0.6.0
Current Setup:
*FH13 Build + Root
*FH13 Modem + no proxy (about 2.0Mbps down 0.65Mbps up)
*AGAT Kernel 0.5.4 200-1200Mhz Pegasusq+noop
*Recent apps bug fix for odex
*Nova Prime + JB animations + JB icons
*AOSP Lock enabled.
*Sprint Hotspot Hack
*haptic feedback disabled
*sync 1hrs intervals (FB, Twitter, G+)
*Screen off 2min + auto brightness
*22hrs+ Battery Life - moderate use - 1.39-2.30 screen on time
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