Hi,The Headblade Sport is delivered with a black adaptor. You have to use the black adaptor instead of the yellow one and put Gillette Sensor blades.They are much cheaper and of higher quality than HB blades. And they can be found in Europe in any store, which is not the case with HB blades.(BTW, since it is your first post, don't hesitate to go to the Introduction section and introduce yourself so that people know who they are talking to...)
That's exactly what I bought. The 8 blades cost around 10 euros and I change them once every two weeks (while shaving every two days). So, it is rather cheap for very good quality. I have not tried any other type of blade, since I am rather new to the Headblade system. This cartridge is the only one I have bought so far.
I do have problems with cleaning the headblade blade, like the one that it came with. Did you have the same problem? I did get the sport edition as described above.