I took this advice this weekend. Cycled to Clitheroe to race (~60KM). Though it was going well, a small group of 2 had got off the front and i'd managed to stick in for the first hour, figured i'd have a go at attackick and forming a chasing group.
Attacked, failed, tried again, failed, dropped.
Ride home was grim.
One race left this season, before a big winter and targeting Cat 1 next year.