First month off OE, guys in my class had a line in LAX.
I had one in the third month, and was 79% overall (with most of those behind me still in training).
This year, new hire classes are sending ~ 8-12 to LAX/320. Now understand, a great many bid off ASAP to other junior bases, so the upward pressure on your seniority from below isn't sustainable until seniors bid off.
WRT commuting from DFW, I've found it to be very manageable. We have 12 or so online nonstop both ways, with a handful of OAL in there too. All of ours but two are Airbus or 787 (w/ 2x JS). Edit: this last comment was geared toward a question on a different thread.