Definitely not my experience. The foot is plenty wide enough to have one on each corner. You aren't side-by-side at the foot; you're cornering it. And yes, I work with partners of all sizes and strength levels, male and female. I've never had an issue with instability of the stretcher with the two-person lift. The only time I have instability of it is when somebody tries to "help" by lifting the undercarriage.