Had no idea there was a Headblade London? or Headblade anything?.
I have always just spoken direct to the customer service at headblade.com and they are awesome
You'll need adapters for the sensor blades but the sensor blades I have found on testing don't work as well as the Headblade 4blade cartridges that come with the ATX, so I wouldn't bother.
Best email headblade.com and they'll sort it all out for you and just buy direct from them, you also will get a discount if you buy as a member of this site by clicking on their banner
Thanks neighbour.. I've now gone down the electric Shaver route and now learning to use a Panasonic ES-RF31-S
I use the Sensor blades with the ATX and they work great. But with any razor, it's what works best for you. And yes, you'll need to get the black sensor adapter which is compatible with ALL headblade razors.