Kat,
I'm 5'-2" as well and new to UL. All I can say at this point is that I am a work in progress. Through spending some coin to get a new pack, tent and bag, revising my BP strategy and carrying less JIC or "luxury" items, my total weight is now substantially less with a base weight less than 10 lbs. To go further, I'll have to spend more for custom big three as even the smallest are big for me. I could easily lose 18 inches off the length of my tent and still be comfy, but It would be impractical to attempt hacking up and re-sewing it to do that.
However as a cyclist and triathlete, I know how easily it is to really spend on the latest gear to get my bike lighter, but my philosophy has always been that it's better for me to peel off 5 lbs of body fat than spend $1000 to shave a few ounces off my bike weight. So with that in mind, I don't see me being SUL, except on weekend trips in really hot weather when all I carry is some food and a light cover.

