I'm not giving it up just yet, I haven't tried anything beyond reason and have had some success, so far the plane flys closest to my style with just the top SFG's on. I don't mind a little experimentation, with some tinkering I've made some planes do what most people at my field have said theirs have never done. I've never owned a pattern plane so this is a bit of a learning curve for me.
You are right about the UCD, you can slap it around high or low and its forgiving,just plane fun type of flying with some 3-D capability. I understand the difference in wing design and loading for the ST is not as forgiving as a UCD but I'm just trying to make it as close as possible so I can enjoy all types of flying with one plane. (I am working on my 2d 60 UCD)