Electrical smoke/full spoilers
Let us put a different twist to the original question for a moment
If you really had to land quickly with a bad electrical fire/smoke, getting from bad to worse
Stabilized at 300 ft.60 tons (320).no wind.isa.A-320.
You are as 10,000 ft 250 knots
What would be your minimum track miles.
For the experts out there.
Autopilot off
Full spoilers.
Gear down.
Start configuring without exceeding flap speeds.
Get configured.
You would come down like a rock.
Gear down -flaps 3.spoilers out
your ROD would be ?
As someone said " exerience"
You have to calculate with what you have under given conditions and the situation. For me this is how important " situational awareness " is.
Continually updating and getting an updated mental representation of the four dimensions,
Situational awareness is key when using spoilers and always keep calculating your profile and updating.