Jeremy,
I think what you like is what I call Slermal flying. It is Slope + Thermal = Slermal. Basically very light or no slope lift from a hill and flying out to find the thermal pockets. I used to do this a fair amount down in So Cal and loved it as it was very close to my house and a good challenge at times.
Since you love to DS, you can DS any glider!! One of the guys down south would DS everything and do it on just about any slope when the conditions got too weak to fly the front side. Now I will say he was a very gifted pilot that kind of reminds me of a young version of Bruce Tebo, the guy could put any plane anywhere he wanted, he would not think twice about flying a glider through the branches of a tree if he saw an advantage to doing so. To DS light weight gliders all you need is a difference in wind speeds, and this opened up basically every slope to DS for him.
To expand on this, a normal DS slope is a special thing that will allow for some high speeds, but when just trying to maintain minimal flight, just about any wind speed difference will do. Jordan would basically leave the slope face with a bit of energy and make his laps over in the landing area, or over the sidewalk just behind the slope face, etc. He had a 2 meter wood floater that was rudder and elevator, and he would do tight little DS laps about the width of a residential street. He would work that for a few laps, build energy and then fly out and check the front side for lift, may do some acro or go hunt for a thermal, got low, come back and do some more DS laps. Top speed was never very much. He would do the same with basically any plane. I have never seen anyone else do the same on a regular basis like he could. We would struggle to fly the front side with better planes, and he would toss out an old combat wing that could not stay up on the frontside and he could not only keep the plane in the air, but have a lot of fun attacking us as he had energy stored up from the laps.
Thinking back, I used to have this big 3 meter vintage thermal ship that I would take to our Slermal site and I always swore that when the conditions got really weak I could put that plane in a tight high angle bank and crank turns with it and it would build and build energy. I just now realized that I was probably DSing it way back then as I would do that very low to the ground at the top of our gently rounded slope hill. LOL I didn't even know what DSing was back then. I did love that feature of that plane.. I always thought that was some magic power that plane had. Probably the long wingspan allowing me to capture the wind differences a bit better than my smaller gliders that I typically flew.
Makes me wonder if someone could DS at a thermal contest if a slight wind came up and they worked a tree line, small out building, etc.