In reply to munri:
sorry,not been online this week,but if you're still after info:
number 3 and 4 gully both complete all the way into the coire floor, number three has the better looking snow (a lot less hacked up by footsteps) but a fairly steep top section. number four is opposite- fairly good entry to gully but pretty hacked up and rough from foot traffic.
hope this helps.
Gordon