I met up with T2, JHS, and RW who I hadn't seen in quite a while, at the master's swim workout.
JHS and I were in the easiest lane, while T2 and RW were one lane over.  I actually think I would have been fine in the 2nd easiest lane, but we were already divided into 5 people per lane.
The workout included some kick and kickboard drills, which I hate.  I'm sure they build leg strength, but I agree with the Total Immersion philosophy on this - I'm not going go kick like a motorboat during the event, so why practice it?  Maybe only if somebody grabs my feet. ;)
Triathlon swimming is different than swim team workouts, because we need to have some energy left over for biking and running afterwards.  This is especially true in an ironman; the last thing I want after the swim is to come out with exhausted legs, knowing I have to pedal 112 and then run 26.2.  I think the kickboard also gets you used to bad form in the water - head up, legs down, hanging onto to the kickboard for flotation.  Pull buoys I can see being useful.
Anyway, I think we did something like 2200 yards total, in 1 hour.
I did like the social aspect of masters - pool workouts for me are typically fairly isolated.