Yeah ... I know the logic ... but I failed again todayYou do have to disciplined on hills and when other cyclists go past. It’s quite amusing watching them waiting for you to engage the hyper drive.

I never eat on the turbo, stick to water only if ride is around 60 mins, or water with SIS tab if up to 2-3 hours with maybe a gel. I always try to eat enough 2 hours before the ride to get me through. If i was going over 3 hours I'd probably have a banana and another gel to hand just in case. I do the exact same outside too.But it is great staying warm enough in these terms, never working hard enough to sweat, and not needing to eat at all.