IMAZ Day 19, Part 1: MORE swimming?

Given yesterday's switcheroo, this morning became a swim. After having swum 4K yds yesterday, I didn't expect to have much in the tank today. I jumped into the pool and felt good for a lap but after that, I felt technically off just a little bit. I decided to try and do the following: 10x(100-200) with 15-20 sec. rest after each swim. It turned out OK, if a bit tedious; I'd originally thought of swimming just half an hour, but I decided to stick it out through the full 10. I averaged about 1:26-1:27 on the 100s and maybe 2:55-2:56 on the 200s. I had no real speed, though, and I felt like I was all over the lane in parts. But -- it's another 50 minutes and 3000yds in the books.