A bit of quantative analysis at least in one instance. You'll see that my defaults were much closer to what the OP ended up at than his were. I tried to keep the adjusted numbers in the same ballpark as the OP.
Defaults:
Code:
NV_C0_BC0_VGA_GAIN_OFFSET_1 Default: 2249
NV_C1_BC0_VGA_GAIN_OFFSET_1 Default: 2994
Altered Values
Code:
NV_C0_BC0_VGA_GAIN_OFFSET_1 Default: 2092
NV_C1_BC0_VGA_GAIN_OFFSET_1 Default: 2494
Readings were taken from a cold boot in the same location on my desk.
I actually saw a bit of a drop in signal strength (2-3 db from -81 or so to -84 or so) with the altered values compared to the default in both 1X and HDR.
Perhaps if my defaults were higher I would see a signal strength increase or possibly more tweaking of the #'s is needed to get a higher signal without increasing battery drain significantly based on my defaults but for this single instance I didn't see an increase in signal strength and went back to the defaults.
So, if you want to give this a shot just make sure you check out the #'s afterwards to get a better grip on the effect of the changes.
Anyone else with some hard #'s after making the change?