Yes, it was very odd! Now I just wish I knew what we were carrying.
SLC-BOS, Flt. 1843.
I've been on flights where we've had to carry extra fuel - and/or some luggage hasn't made it (and I've been on a few regional planes over the years where we were overweight and some folks were denied boarding/off-loaded or people were resat) for various reasons - but not a decent sized jet! Clear and warm (but not super hot) in SLC when we left.