Went to practice at Dennis house and did 6 x 2' intervals.  I felt strong on the first 5 intervals and sprinted to the finish on the 5th one.  I did the first 5 intervals solo (not drafting) around 25mph.  On the sixth interval I was pretty tired after the 5th interval sprint so I decided to draft most of the way but was able to stay near the front of the group.