Hi Mikael! Dan glazed over an answer which (I personally) would find really useful! With short vs long Vo2 etc efforts, should people play to their strengths, or work on their weaknesses, or is it an “it depends….” answer? I have trained strength for many years, strongman, powerlifting, (running) track sprinter etc and short efforts come easy to me. Peak wattbike sprint power is about 2200w, but ftp is 310-315w @ 93kg. Would I be better capitalising on short efforts, or working on the 2/3/4min efforts as they are a weakness? I can often repeat 30/30s multiple times a week and recover well, but 4x4min @ 110% ftp has me on the floor for a few days! Logic says to work both, along side z2 and ignore tempo, threshold etc until race season specificity is needed. Or, have I just answered my own question? Regards, Pete