I have G.Skill F3-12800CL8D-8GBXM and the Auto timings on my MoBo show 9-9-9-28 when the timings are (per spec) 8-8-8-24.
Should I change the setting to manual and correct it? At the top of the bios it identifies the chips correctly (saying it is DDR3-1600 8-8-8-24) but below where the timings actually are it says the other 9-9-9-28.
Yes you should change the Memory timings in the BIOS, and set the manual voltages recommended by the Manufacturer too. Also, you can operate your memory @ 1333 MHz and Lower Voltage and Timings, Lower Timings = better performance.
So you're fine with both, 1333 MHz CL7 or 1600 MHz @ CL8.