Deep Europe (Rome,FRA, TLV,etc.) 6 to 7 times, short stuff (SNN, DUB, etc.) 7 to 8 times. Anywhere from 12 days to 19 days off for the lines.
The gig for IRO used to be senior, not anymore. However, look for it to be good after the pay comes back.
I'm back on the B737 now, but for 7 years I flew the B75/76 and commuted to florida. I found that sub-base to be the best one for commuting; late check-ins, afternoon get backs. (And great layovers in Europe, South America, Pacific)