I have been doing a lot more inside even when it's nice out. Mostly because I'm nervous about my first 70.3. I'm trying to get as many consistent power rides to gauge my bike leg power as I can. Too much stopping and starting where I typically ride. Over an hour used to be miserable on the trainer. Still don't love it, but I can get through it now. 3 hours is doable, maybe 5 if it was perfect conditions and I'm in the perfect mood. But hell, the mental part is training in its own.