Hi,
Well, I am an adult skater at 135lbs and doing singles. The last Riedells I wore were Silver Star and I liked the support in them for only about 9 months, then I felt that they didn't have enough support in the ankles anymore. I tried the 875TS recently and they were too soft (I like stiff ankle support also.) So if I was going with Riedell, I would get their top model (HLS 1500). The thing I liked best about the Riedells is that they required almost no break in for me.
Now I am in the Super Teri CL. They took about 20 sessions to break in but now they are feeling pretty good and I like the support.
Just my 2 cents,
Mark.