I’d love to jump on on this.
I have gone from 3:24 to 3:03 on the level 2 plans, over the course of a couple of years, and I’m using level 2 again to try to hit sub-3:00 in April, albeit with some modifications that David suggested a few months ago. I can’t commit to the demands of level 3, particularly the double-up days.
He suggested increasing the foundation runs where possible, by 20-30 minutes, and running the hard runs at the top end of the zones. By ‘hard’, he means the tempo and fartleks, plus the long run over 90 minutes.
He also suggested using the strength plan.
I know this isn’t 2:45, and I also hope I’m not misquoting David’s advice, but it might be useful.
I am starting this on 19th December, so I’ll see how I go.