How important is top sprint speed for racing Cat 4/5?
I build a road bike up a few months ago with the intent of racing in the spring, and my training so far is coming pretty well: except for my sprint speed. As much as I try I can't increase it at all. I hit 30mph about a month ago, and while everything else is still improving I haven't been able to sprint .01mph faster since. After a hill or with a lead-out I can go faster, but my solo effort just stops dead there.
Is this something I should worry will affect my racing (and therefore spend more time working it), or should I just continue on with my training plan and not worry about it as much?