A question on standard power cutoffs, "high" NCC score

Are there standard cutoffs for what you would consider too little or too much power? / what value would you consider a high NCC score?

The exact values are dataset dependent. Even for NCC, different templates tend to produce different average NCCs. Furthermore, the values are adjusted for defocus using the linear fit from the Inspect Particles overview tab.

My approach is to first set the maximum power to exclude ice and carbon but keep the actual particles on a high defocus micrograph, and then to check a low defocus micrograph to set the minimum power. I set the NCC just below where any particles are excluded on these two micrographs.