We had 2 groups from our linkshell do bhlafau last night. The first group entered about 20minutes before the other. Only the first group saw madbomber (no gate widows).
Both groups entered the 2nd floor rampart at night time (after 20:00) on Watersday. Group 1 saw 3 Skirmish pops and 1 drop, group 4 saw 4 skirmish pops and 1 drop. (Group 1 also ended with 5 wasps up due to the main DD dcing, so may have been another one due). Both started popping after 50% on the rampart to (finally managed to stop one of our group wanting to kill them off at 50%).
Whilst this could be just co-incidence it seems to suggest that the conditions of the moon/day/time have more to do with skirmish than actions on the run.
XI Wiki

