I guess what I'm saying is I want my target to be as high as possible. Is there a harm to setting the frequency and power to it's highest setting and then backing down? I don't want to burn anything out. What is the highest frequency? If I increase the power all the way and just let it autotune, will that do it? Sorry to be so dense....
The highest frequency you really want to go is 750Mhz. Some units will go higher but will consume allot more power for very little hash rate gain. I have one unit that will do 1Ths at voltage level 5. Why set it to voltage level 7 or the same 1Ths?
I would shoot for 750Mhs at voltage level 5 or 6. But try them all and see where your unit falls. It's pretty rare to have to go to voltage level 7. But each unit is a little different.
That's my suggestion anyway.