FO open time has been premium for most of the summer, and they offered a vacation buyback as well. Not sure how many people took the offer because it wasn't very lucrative.
They've managed to cram so much flying into the lines for August that there is very little open time. Consequently, the Aug 14 schedules are probably some of the worst we've seen (my opinion, but I think many agree.) Almost nothing more than two days off at a time with one 3 or 4 day break if you're lucky. Lots of lines have night and morning trips mixed together. The majority have only 12 or 11 days off.
Last summer, time away from base tended to range from ~250 to 330hr or so at the high end. This year the LOWEST lines have about 330hr TAFB, with some breaking the 400hr mark.
