I too liked those for efficiency, but they might as well been 4 days, since my body wrecked most of the day after I got home. Other people loved them and didn't have apparent issues. I hope they treat you better! But no amount of "I've figured out my sleep," will make up for the sleep depravition that goes on crossing the pond.

My jam would be 1-day or 3-day trips, T/W/TH. There is a good mix of 3-5 day trips, which is great for the commuters, but there needs to be more 1 and 2 days. More is a bad term since we haven't had 1 days in ky cateogey for a bit. I think we have one 2-day this month.