I feel like there's a lot of discussion in here about what UPS pays and their alleged quality of life, so I guess I'll be a dissenting voice.

While it's true you'll make more at UPS and you'll probably have more days off, there's very little discussion of what those days off might look like. Unlike FX, which is substantially larger and has more daytime flying, the overwhelming majority of UPS' flying is on the back side of the clock. In addition to the known health risks long-term (https://blogs.cdc.gov/niosh-science-...tshift-cancer/), how many of those days off would you spend just trying to acclimate to or from your late work schedule? Realistically, you're probably looking at a minimum of one day off before and after a work trip to reacclimate to the standard daytime schedule. How productive would you be on those days? Only you can answer that, I suppose.