Who has skated the ATF's? I currently ride the 55mm Standard STF's and I like how they perform, with the exception being rough/asphalt/broken surfaces, which are all around my house. Can you powerslide the ATF's? Are they too bouncy to pop a good ollie?
Great soft wheel, but not meant for sliding. You have to push too hard, it doesn't slide, and there have been reports of the wheels coming off the cores.
I'd say you would prob like the DTF wheels. They come in 56mm, 1 mm up from your wheels, and they are 95a, but they are the urethane formula used in the STF/SPF's. That type wheel should roll great for you and still give you some slide.
or...
If you want a little bit harder wheel than that, but with a little more give than the STF's try the Powell Peralta Rippers 54mm 97a.
I agree, if you are looking for a little softer wheel (than a STF) and want to slide, DTF is probably what your looking for. ATF's ride great, but don't really slide.