I have Ray's LED RGB Flexstrips with the SSC version 1, and I've tested both in the Garage and also on my live Halloween display which has been running every night since Oct 1st.
My LED's seem to ramp up and down just fine, from 0-100% and also from 100 to 0%. I never gave it a second thought. It doesn't seem to matter which color either and I've used Red, Blue, Geen, White, Orange, Purple, all seem to work fine for me.