I don't use it in a point and shoot mode that much. I think that the settings are best for outdoors work, in moderately good weather, in normal daylight hours.
Having spent as much as money you have no doubt spent, you need to start to get used to the camera settings. I keep mine set at 100ASA and F11 in A mode, with my Sigma 10-20mm lens on.
Anyway, if you have the A bank set per the spreadsheet, you are taking the shots in RAW(NEF) and JPEG, you can adjust the white balance quite easily on the NEF files. You also have it set to Aperture mode. Just press the WB button on top and dial in the flash setting.
The White Balance used on Auto can vary from 3500K to 8000K. Set to flash it is fixed at 5400K. The blue tinge indicates the camera has selected too low a figure. Once the WB is set to Flash in the top LCD, you can vary this by +/-3. Going negative sets the WB higher, and the opposite, going positive, sets the WB lower.