The session starts with a steady warm-up and three short sets of progressive above FTP efforts to get the legs nicely prepared for the work ahead. This main set comprises of 5 sets of 6mins at around Sweetspot effort, gently increasing within each set, with the 'kick' being that each set finishes with 30 secs above FTP. Think of that as a short/sharp hill that needs to be crested and forces you out of your(relative!) comfort zone, before recovering and then getting back into your sustainable pace.