At Masters yesterday, the workout was a mix of endurance & medley. I was able to get in a 750m warmup (150m w/ fins), before Coach started the official practice. His plan for the day was 4-6 300m sets with the odd sets a solid 300m free and the even sets 4x75m medley (1st - fly back breast [I have to sub free for fly], 2nd - back breast free). We did 4 300m sets in my lane. I led most of the time and really tried to maintain a strong, steady pace.
With just 30 sec rest between 300s and 15 sec between 75s, I was breathing pretty hard. I was quite tired when we started the last 300 medley and I am very slow on the breast so at that point, a few of the other swimmers went ahead of me. I didn't like that. I like being in the lead now. I obviously have some work to do.
However, I feel I have found the right 'zone' for the breast stroke. I am generally able to do 2 strokes before I take a breath which has really helped me get a better, more aerodynamic position. I can actually feel the smoother forward motion... more of a glide than a push through the water. It takes some work... some effort... but I am definately improving.
Total swim distance: 2000m (I threw in a 50m cooldown at the end)