I do hope my question is too ridiculous. How to focus a 50mm fle?

The hasselblad 5m f4 fle has three dials; four including focusing. Ignoring the shutter and aperture we are left with the focus ring and the floating element dial.

Is it better to set the floating element dial, estimating the distance first; then focusing? Or focusing first and then set the dial? Or I'm overthinking it! If I set the fle dial after focusing, check focus again on the ground glass?

I do appreciate people helping me out clarifying this.