Was thinking I could sub these 2 hour sweet spot rides for 3 to 3.5 hour early morning endurance rides. Bit more convenient for me as I can get up really early at the weekend, have a quick, small breakfast and just ride at endurance outside for a few hours. No need for making sure I’m well fuelled to nail intervals etc. I can play catch up calorie wise for the day and next day so I’m back on track for the hard stuff. Also means I can ride outside without making indoor trainer noise for a couple of hours and burn a bit more belly.
What sort of potential FTP loss/gain would you be looking at if you subbed the sweet spot workouts for endurance rides? If the hit would be too big then I’ll just suck it up and try to do the sweet spot intervals outside early in the morning. Will just be a bit tougher as it’s hard to nail big long intervals when you’re half asleep!