That's how I used it tonight(I'll post the workout later).
I think you (or me, hopefully other people can clarify) may be misunderstanding. The weight on a safety squat bar is placed forward, making the center of gravity similar to a front squat. SSB's are meant to be placed on the back. They benefit of having a front squat style center of gravity, just without the risk of droping the bar because of an uncomfortable/weak/whatever rack.
My elbow and ass cheek are sore today... how does that work?
Also learned that eating a bunch of expired cookies with a tall glass of expired milk prior to going to the gym is not the best idea... I did not know until I was half done and started to question the quality...