you can control the shutter lag in the menu in the H cameras.
from 0ms to 250ms. and it works.
jumped to the hassy from a mamiya and didn't look back
yes that is one thing I love, not sure if it does help but I have it on 250ms to reduce vibration
one good thing about the Hasselblad is that it is a better package altogether
and the built quality is far better, some complain about the 1/800 sec mas shutter speed but I havent really ran into a problem so far
if you must there is ND filter to cut down some light but most of the time 1/800 sec is fast enough at f2.8 to f4 during the day(the only lens faster than f2.8 is the 100mm f2.2), dont forget about ISO 50
one thing though I havnt found a reasonable priced flash trigger that claims a flash sync faster than 1/250 sec, anyone with a suggestion?