Thoughts about next season
Lots of I-3 sessions (threshold), completed as distance sessions. Not intervals. In other words, 60-90 minute constant efforts at I-3. I've been doing that this season as well, and I might do even more of it next year.
A bit more I-4 / I-5 (Max VO2) sessions. I may introduce these sessions a month earlier than usual. I'm also seriously considering having 2-3 blocks of very intense I-4 / I-5 sessions as a build-up to 2007. Each block would consist of 10-13 I-4 and I-5 intervals over the course of 7-10 days. With 2, or maybe even 3, of these blocks, I should see a considerable increase in my Max VO2 numbers.
Of course, it's early still and things might/will change.