The profiles have to take into account the vast difference between individual CPUs. I have a 4770K that requires 1.280 for 5GHz stable, and another that needs 1.440 just to clock to 4.3GHz. So it is very difficult to have a preset that is going to reflect the optimal voltages for your CPU.
As you have worked out BIOS overclocking is the best way.
The rest I can not really comment on sorry.
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