I use the HB Sport almost exclusively. I have an ATX. Tried it. Used it through 4 blades. For me, it is just not as smooth as the Sport.
I don't nick myself with it. It feels good in the hand, but the shave is not as smooth as I can get with other razors. They no longer sell the Sport in stores. But it's available online. Use the links on this site and save 20% at checkout. It also makes a donation to SBG when you do that.