the problem is... How do you know what the visibility exactly is?
You can only go on the latest RVR or the last RVR given to you before reaching the approach ban point at 1000'AAL.
In genuine CAT3a conditions, the rule book says any problem after Decision Ht: GO AROUND! Whether you would live to regret not doing so is questionable. To be trying to manually land and rollout at 200metres visibility and high speed is dodgy. What is the point of Cat 1 limits of 200'/600m if on a Cat 3 approach you can do just the same as a Cat1 manual landing (and hope you get away with it!)? The AWOPS regulations say Cat 2 and Cat 3 landings MUST be automatic. Trying to manually land in those conditions is really not for having passengers behind you!
Renard
Wasn't the MD80 tail snap landing a flappless approach, which would result in a much higher rate of descent than on a CATIII approach.
If that was a flapless approach, why were the flaps deployed in the landing position? 10 seconds of video- go watch it again!
Another 'no flare' landing, exacerbated by flaring late and driving the wheels in:
YouTube - C130 WING SNAP
Don't like it, aeroplanes don't, just don't like it!