Hi Miss B, Yes I did, this is my 7th week with UPS 6th week loading midnight shift. It's hard work to me but doable. I see some petite women doing trailers. I'm the only female in my PD and I was fortunate enough to have guys that welcomed me and helped train me.(which definitely helped ) You will always be trying to prove yourself. You have to do what's best for you not be worried about if the guys are waiting for you to drop out. The people here on BC said to me when I posted this that this job is not for everyone. My hub had spots for unloading and preload also there are lots of females doing preload at my hub.