In all fairness I have to say the rostering is the most stable I have ever experienced in quite a few decades of flying but of late they have occasionally started "backfilling" the roster. i.e. You get a big blank in your initial roster and after you have planned doing something in that time a later roster suddenly fills in the blanks -- probably right in the middle of what you had planned! From the sound of things you must be flying for eJ at the moment so in general FR rostering is much better than that. Under Irish rules you can do much longer days (No Cap 371!) e.g. You can start at 0530 and do a double STN-GRO - about a 12.5 hr day and around 8 hrs actual stick time! MOst rosters are 5 days of earlies then 5 days of lates.