Ultherapy with thin skin? Have read reports that Ultherapy can further thin it out. (photos)

I have had a consult for Ultherapy and was recommended as a candidate. My concern is that my skin is thin and I have read reports of Ultherapy further thinning it - how common is this and how worried should I be? I am mostly concerned about lifting and tightening the skin on my neck and lower face/nasolabial folds/sagging jowls. (I'm also interested in improving the tone and large pores, but am worried about too much exfoliation and peels with thin skin).